@book{Friedrich+1988,
url = {https://doi.org/10.1515/9783110859188},
title = {Vitamins},
author = {Wilhelm Friedrich},
publisher = {De Gruyter},
address = {Berlin, Boston},
doi = {doi:10.1515/9783110859188},
isbn = {9783110859188},
year = {1988},
lastchecked = {2026-05-01}
}