@misc{indiciae2177e1270610, title = {4-Pentenoic acid.}, author = {H Schulz and J C Fong}, year = {1981}, doi = {10.1016/s0076-6879(81)72050-0}, url = {https://pubmed.ncbi.nlm.nih.gov/7311857/}, note = {Source identifier: 7311857} }