Bykova, N. K. (1959). K voprosu o zakonomernostyakh filogeneticheskogo razvitiya foraminifer v usloviyakh periodicheski izmenyayushcheysya sredy [On the question of conformity in phylogenetic development
of the foraminifera under conditions of a recurrent variable environment].
Voprosy Paleobiologii i Biostratigrafii, Trudy II Sessii Vsesoyuznogo Paleontologicheskogo Obshchestva, Moscow. 63-75.