Doguzhaeva, L.; Summesberger, H.; Mutvei, H.; Brandstaetter, F. The mantle, inksac, ink, arm hooks and soft body debris associated with the shells in Late Triassic
Doguzhaeva, Larisa A.; Mapes, Royal H.; Mutvei, Harry (2003). "The shell and inksac morphology and ultrastructure of the Late Pennsylvanian cephalopod Donovaniconus