1. Entwicklungsgeschichtlioke Untersuchungen uber die Piperaceae—Peperomia verschaffeltii Lem. und P. metallica;Abele K.;Acta Universitatis Lundensis,1923
2. Untersuchungen an gametophyten von Peperomia incana;Abele K.;Botanic Archive,1924
3. Embryology of
Manekia naranjoana
(Piperaceae) and the origin of tetrasporic, 16‐nucleate female gametophytes in Piperales
4. Ultrastructure of the megasporocyte spore coenocyte and coenocytic embryo sac of Peperomia blanda (Piperaceae);Bannikova V. P.;Doklady Akademii Nauk Ukrainskoi SSR Seriya B Geologicheskie Khimicheskie i Biologicheskie Nauki,1984
5. Ultrstructure of different types of embryo sacs;Bannikova V. P.;Phytomorphology,1987