@phdthesis{Radtke2017,
author = {Radtke, Gregor},
year = {2017},
title = {The internal structure of growth interruptions and the dorsal shell wall of
Mesozoic ammonoids and its phylogenetic and taxonomic implications},
type = {Dissertation},
url = "http://dx.doi.org/10.17169/refubium-15879",
}