Search for: [Subject and Keywords = Astronomia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Chemia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Fizyka \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Geografia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Geologia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Matematyka \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Astronomia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Chemia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Fizyka \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Geografia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Geologia \-\- czasopisma. \[KABA\]] OR [Subject and Keywords = Matematyka \-\- czasopisma. \[KABA\]] OR [Title = Reactions of Aromaric Amines with Cyanguanidine. Formation of Derivatives of Amidineurea and Their Reaction with Aniline.] OR [Creator = Urbański, Tadeusz \(1901–1985\)] OR [Creator = Skowrońska\-Serafin, B.] OR [Creator = Dąbrowska, H.]