Details Details PDF BIBTEX RIS Title Spherules associated with the cretaceous–paleogene boundary in Poland Journal title Acta Geologica Polonica Yearbook 2014 Volume vol. 64 Issue No 1 Authors Brachaniec, Tomasz ; Karwowski, Łukasz ; Szopa, Krzysztof Divisions of PAS Nauki o Ziemi Publisher Komitet Nauk Geologicznych PAN ; Wydział Geologii UW Date 2014 Identifier DOI: 10.2478/agp-2014-0004 ; ISSN 0001-5709 Source Acta Geologica Polonica; 2014; vol. 64; No 1