Scientific publications, referred and indexed in world data bases

Despirak, I.V.,Gineva, V.K. & Dashkevich, Z.V., Particle-precipitation fine structure during the development of substorms at high latitudes. Geomagn. Aeron. (2014), 54, 180-186. ISSN: 00167932 (print), 1555-645X (online), DOI:10.1134/S001679321402008X

Atanassov A. M.. Parallel, adaptive, multi-object trajectory integrator for space simulation applications. Advances in Space Research (2014), 54(8), 1581-1589. ISSN:0273-1177, DOI:10.1016/j.asr.2014.06.018

Petkov, B., Vitale, V., Tomasi, C., Siani, A. M., Seckmeyer, G., Webb, A., Smedley, A. R. D., Casale G. R., Werner, R., Lanconelli, C., et. al, Response of the ozone column over Europe to the 2011 Arctic ozone depletion event according to ground- based observations and assessment of the consequent variations in surface UV irradiance.Atmospheric Environment (2014), 85C, 169-178. ISSN: 1352-2310, DOI:10.1016/j.atmosenv.2013.12.005

Werner, R., Valev, D., Danov, D., Guineva, V., Kirillov, A., Analysis of global and hemispheric temperature records and prognosis. Adv. Space Res. (2015), 55(12), 2961-2973, ISSN: 0273-1177, DOI:10.1016/j.asr.2015.03.005

Werner, R., Valev, D., Danov, D., Guineva, V., Study of structural break points in global and hemispheric temperature series by piecewise regression., Adv. Space Res. (2015), 56(11), 2323-2334, ISSN:0273-1177, DOI:10.1016/j.asr.2015.09.007

Semeida, M., Marzouk B., Stoeva, P., Stoev, A., Empirical investigation of solar photosphere and faculae in Ca II IR triplet lines using non-local thermodynamic equilibrium method. Compt. Rend. Acad. Bulg. Sci. (2015), 68(10), 1287-1294, ISSN 2367-5535 (Online)

Atanassov, A.M. Parallel Satellite Orbital Situational Problems Solver for Space Missions Design and Control. Advances in Space Research (2016). 58(9), 1819-1826, ISSN:0273-1177, DOI:10.1016/j.asr.2016.07.005

Stoev A., Maglova P., Markov V., Spasova M., Prehistoric rock sanctuary with arch near the village of Kovachevitsa,Bulgaria: spatial orientation and solar projections. Mediterranean Archaeology and Archaeometry (2016), 16(4), 413-419, ISSN: 1108-9628, DOI: 10.5281/zenodo.220965

Stoev A., Maglova P., Research project "Astronomical orientations and geophysical anomalies of trapezoidal niches in the Eastern Rhodopes, Bulgaria": in search of an international partnership. Mediterranean Archaeology and Archaeometry (2016), 16(4), 407-412, ISSN:1108-9628, DOI: 10.5281/zenodo.220964

Stoeva Penka, Alexey Stoev, Mina Spasova. Late Chalcolithic solar-chthonic rock-cut structures for time measuring in the Eastern Rhodopes, Bulgaria. Mediterranean Archaeology and Archaeometry (2016), 16(4), 401-406, ISSN:2241-8121

Semeida M., B. Marzouk, P. Stoeva, A. Stoev.,Physical models for Ca II IR triplet lines in solar photosphere and faculae in non-local thermodynamic equilibrium. Compt. Rend. Acad. Bulg. Sci. (2016), 69(8), 1047-1056, ISSN: 1310-1331

Abseim, A. A., Semeida, M.A., Amin, M. Y., Youssef, S. M., Stoeva, P., Stoev, A.. Modified cloud method validiation for determine the physical parameters of a moderate flare. Compt. Rend. Acad. Bulg. (2017), 70(6), 839-848, ISSN: 1310-1331

Kirillov, A.S., Werner, R., Guineva, V..The influence of metastable molecular nitrogen N₂(A³Σ_u⁺) on the electronic kinetics of CO molecules. Chemical Physics Letters (2017), 685, 94-102, ISSN:0009-2614, DOI:10.1016/j.cplett.2017.06.001

Schmalwieser, A.W., Gröbner, J., Blumthaler, M., Klotz, B., de Backer, H., Bolsee, D., Werner, R., et. al. UV Index monitoring in Europe. Photochemical & Photobiological Science (2017), 16(9), 1349-1370, ISSN:1474-905X, DOI: 10.1039/C7PP00178A

Guineva, V., Despirak, I.V., Werner, R.. Observations of substorm auroras by MAIN cameras system in Apatity during two winter seasons: 2014/2015 and 2015/2016. Journal of Atmospheric and Solar-Terrestrial Physics (2018), 177, 63-72, ISSN: 1364-6826, DOI:10.1016/j.jastp.2017.09.014

Scientific publications, indexed in world data bases

Guineva V., I.Despirak, B.Kozelov.. Variations of substorms connected with different solar wind conditions. Aerospace Research in Bulgaria (2014), 26, 145-154, ISSN 1313-0927

Guineva V., I. Despirak, B. Kozelov, R. Werner, Substorms over Apatity during the period of enhanced geomagnetic activity 7-17 March 2012, Aerospace Research in Bulgaria (2015), 27, 43-53, ISSN:1313-0927

Semeida, M.A., Khodairy, S. S., El Hadidy, M. S., Hamed, R. H. A., Youssef, S. M. A., Stoeva, P., Stoev, A.. Examination of the relationship between solar activity and Earth seismicity during the weak solar cycle 23. Aerospace Research in Bulgaria (2018), 30, 5-15, ISSN:1313-0927, DOI:10.3897/arb.v30.e01

Scientific publications in peer reviewed journals

Valev, D., Estimations of total mass and energy of the observable universe. Phys. Int. (2014), 5(1), 15-20, ISSN: 1948-9803, DOI: 10.3844/pisp.2014.15.20

Forsythe C.J., Valev, D.T., Extended mass relation for seven fundamental masses and new evidence of large numbers hypothesis. Physics International (2014), 5(2), 152-158, ISSN: 1948-9803, DOI: 10.3844/pisp.2014.152.158

Guineva V., Despirak, I., Kozelov, B., Substorm observations in Apatity during 2012/13 winter season: a case study. Sun and Geosphere ( 2015 ), 10, 79-88, ISSN 2367-8852

D. Valev, Estimations of neutrino and graviton masses by a phenomenological mass relation for stable particles. Physics International (2015), 6(2) 82-88 , ISSN: 1948-9803, DOI: 10.3844/pisp.2015.82.88

V. Guineva, I. Despirak, B. Kozelov, Substorm observations during two geomagnetically active periods in March 2012 and in March 2015, Sun and Geosphere, (2016), 11 (2), 125-130, ISSN 2367-8852

Mikhalev A.V., S.V. Podlesny, P.V. Stoeva, Night airglow in RGB mode, Solar-Terrestrial Physics (2016), 2(3), 106-114, DOI: 10.12737/22289

R. Werner, B. Petkov, D. Valev, A. Atanassov, V. Guineva, A. Kirillov, Ozone Determination by GUV 2511 Ultraviolet Irradiation at Stara Zagora, Sun and Geosphere (2017), 12(2), 133-138, ISSN 2367-8852

V. Guineva, I. Despirak, B. Kozelov, Auroras observations of the MAIN in Apatity during 2014/15 winter season. Sun and Geosphere (2017), 12(2), 111-118, ISSN 2367-8852.

D. Valev, Derivation of Potentially Important Masses for Physics and Astrophysics by Dimensional Analysis. Physics International (2017), 8(1), 24-29 , ISSN: 1948-9803 , DOI: 10.3844/pisp.2017.24.29

V. Guineva, I. Despirak, R. Werner, Substorm observations by THEMIS D and ground-based observations by MAIN camera system in Apatity - a case study, Sun and Geosphere (2018), 13, 95-100, ISSN 2367-8852