The 6th Conference of the Polish Society on Relativity :  Szczecin, Poland, September 23-26, 2019 / 
organized by: Szczecin Cosmology Group, Institute of Physics, University of Szczecin, Polish Society on Relativity, Faculty of Physics, University of Warsaw, Jagiellonian University in Kraków, Maritime Academy in Szczecin ; Vincenzo Salzano editor of the proceedings. 
 - Cracow :  Jagiellonian University,  2020. 
 - Strony [8], 167-340 :  ilustracje ;  24 cm. 
 - Acta Physica Polonica. B, Proceedings Supplement,  vol. 13, no. 2 (2020)  1899-2358 ; .
 - Acta Physica Polonica.  B,  Proceedings Supplement  vol. 13, no. 2 (2020) .
<br/><br/>Bibliografia przy artykułach. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Względność (fizyka)--konferencje.