K sistematike pozdnepaleozoickikh morskikh lilii semeistva Floricyclidae [On the systematics of the Late Paleozoic crinoids of the family Floricyclidae] - 1989
Svoeobraznye prikrepitelnye obrazovaniya morskikh lilii iz ordovika Estonii [Peculiar crinoid holdfasts from the Ordovician of Estonia] - 1989