A review of ichnofossils from Estonian palaeontological collections
Toom, Ursula
;
Vinn, Olev
;
Hints, Olle
10th Baltic Stratigraphic Conference : Checiny, 12-14 September 2017 : abstracts and field guide
2017
/
p. 82-83
http://geo.uw.edu.pl/tl_files/publikacje/10th_Baltic_Stratigraphic_Conference_Abstracts_and_Field_Guide.pdf