M. Olech, M. Szymczak, P. Wolak, E. Gérard, A. Bartkiewicz "Long-term multi-frequency maser observations of the intermediate-mass young stellar object G107.298+5.639" Astron. Astrophys.634, A41 (2020), 1-18 DOI: doi.org/10.1051/0004-6361/201936943
2019
M. Olech, M. Szymczak, P. Wolak, R. Sarniak, A. Bartkiewicz "6.7GHz variability characteristics of new periodic methanol maser sources" Mon. Not. R. Astron. Soc. 486 (2019), 1236-1254 DOI: doi.org/10.1093/mnras/stz926
L. N. Vol’vach, A.E. Vol’vach, M.G. Larionov,, G. C. MacLeod, S. P. van den Heever, P. Wolak, M. Olech, A.V. Ipatov, D.V. Ivanov, A. G. Mikhailov, A.E. Mel’nikov, K. Menten, A. Belloche, A. Weiss, P. Mazumdar, F. Schuller "A Giant Water Maser Flare in the Galactic Source IRAS 18316-0602" Astron. Rep.63 (2019), 49-65 DOI: 10.1134/S1063772919010062
M. Durjasz, M. Szymczak, M. Olech "A highly variable methanol maser in G111.256–0.770" Mon. Not. R. Astron. Soc. 485 (2019), 777-783 DOI: doi.org/10.1093/mnras/stz472
L. N. Volvach, A. E. Volvach, M. G. Larionov, G. C. MacLeod, P. Wolak, M. Olech, B. Kramer, K. Menten, A. Kraus, J. Brand, A. Zanicelli, S. Poppi, S. Rigini "A Water-Vapor Maser Flare in a High-Velocity Line toward W49N" Astron. Lett.45 (2019), 321-330 DOI: 10.1134/S1063773719050074
F. Rajabi, M. Houde, A. Bartkiewicz, M. Olech, M. Szymczak, P. Wolak "New evidence for Dicke’s superradiance in the 6.7 GHz methanol spectral line in the interstellar medium " Mon. Not. R. Astron. Soc. 484 (2019), 1590-1597 DOI: doi.org/10.1093/mnras/stz074
L. N. Volvach, A. E. Volvach, M. G. Larionov, G. C. MacLeod, S. P. van den Heever, P. Wolak, M. Olech "Powerful bursts of water masers towards G25.65+1.05" Mon. Not. R. Astron. Soc. 482 (2019), L90-L92 DOI: 10.1093/mnrasl/sly193
R. A. Burns, G. Orosz, O. Bayandina, G. Surcis, M. Olech, G. MacLeod, A. Volvach, G. Rudnitskii, T. Hirota, K. Immer, J. Blanchard, B. Marcote, H. J. van Langevelde, J. O. Chibueze, K. Sugiyama, Kee-Tae Kim, I. Val‘tts, N. Shakhvorostova, B. Kramer, W. A. Baan, C. Brogan, T. Hunter, S. Kurtz, A. M. Sobolev, J. Brand, L. Volvach "VLBI observations of the G25. 65+ 1.05 water maser superburst" Mon. Not. R. Astron. Soc. 491 (2019), 4069-4075 DOI: https://doi.org/10.1093/mnras/stz3172
2018
M. Szymczak, M. Olech, P. Wolak, E. Gerard, A. Bartkiewicz "Giant burst of methanol maser in S255IR-NIRS3" Astron. Astrophys.617, A80 (2018), 1-9 DOI: 10.1051/0004-6361/201833443
M. Szymczak, M. Olech, R. Sarniak, P. Wolak, A. Bartkiewicz "Monitoring observations of 6.7 GHz methanol masers" Mon. Not. R. Astron. Soc. 474 (2018), 219- 253 DOI: doi:10.1093/mnras/stx2693
2016
M. Szymczak, M. Olech, P. Wolak, A. Bartkiewicz, M. Gawroński "Discovery of periodic and alternating flares of the methanol and water masers in G107.298+5.639 " Mon. Not. R. Astron. Soc. 459 (2016), 56-60 DOI: doi:10.1093/mnrasl/slw044