, 2004 — The phylogenetic relationships between actinolepids (Placodermi: Arthrodira) and other arthrodires (phlyctaeniids and brachythoracids). The phylogenetic relationships between actinolepids (Placodermi, Arthrodira) and other arthrodires (Phlyctaenii and… Fossils and Strata vol. 50, , p. 40-55
, 2004 — Evidence of biostratigraphic correlations within the Wood Bay Formation (Lower Devonian, Spitsbergen). Some paleontological results of the 1969 French expedition with geological considerations. Acta Universitatis Latviensis (Proceedings of the 2nd Gross Symposium, Riga, Latvia) vol. 679, , p. 148-157