@article{Radtke2016,
author = {Radtke, Gregor and Hoffmann, Rene and Keupp, Helmut},
year = {2016},
language = {eng},
copyright = {http://creativecommons.org/licenses/by/4.0/},
title = {Form and formation of flares and parabolae based on new observations of the
internal shell structure in lytoceratid and perisphinctid ammonoids},
url = "http://dx.doi.org/10.17169/refubium-19724",
}