@article {Rutten1956,
	title = {The Jurassic reefs on the Yonne (south-eastern Paris Basin)},
	journal = {American Journal of Science},
	volume = {254},
	year = {1956},
	pages = {363{\textendash}371},
	keywords = {JS, TIP},
	doi = {10.2475/ajs.254.6.363},
	author = {Rutten, M G and Jansonius, J}
}
