@article {137, title = {Morphological and mechanical aspects of fission in Ophiocomellaophiactoides (Echinodermata, Ophiuroidea)}, journal = {Zoomorphology}, volume = {104}, number = {5}, year = {1984}, pages = {310{\textendash}322}, author = {Wilkie, II.C. and Emson, R. H. and Mladenov, P.V.} } @article {85, title = {Brooding and paedomorphosis in the deep-water feather star Comatilia iridometriformis (Echinodermata: Crinoidea)}, journal = {Marine Biology}, volume = {80}, year = {1984}, pages = {83-91}, author = {Messing, C.} } @article {66, title = {A new method for calculating evolutionary substitution rates}, journal = {Journal of Molecular Evolution}, volume = {20}, year = {1984}, pages = {86{\textendash}93}, author = {Lanave, C. and Preparata, G. and Saccone, C. and Serio G.} }