@article {591,
	title = {Untersuchungen an einigen Gymnospermen der Fr{\"a}nkrischen Rh{\"a}t-Lias-Grenzschichten},
	journal = {Palaeontographica Abtheilung B},
	volume = {224},
	year = {1992},
	pages = {17-61},
	chapter = {17},
	author = {Kirchner, M.}
}
