@article{Ueno_1983,
	doi = {10.1002/bip.360220208},
	url = {https://doi.org/10.1002%2Fbip.360220208},
	year = 1983,
	month = {feb},
	publisher = {Wiley},
	volume = {22},
	number = {2},
	pages = {633--641},
	author = {Katsuhiko Ueno and Toshimi Shimizu},
	title = {Crystal structure and conformation of a cyclic tetrapeptidecyclo(L-Pro-Sar)2 containing all-cis peptide units},
	journal = {Biopolymers}
}