@misc{indiciae3f644c7b30d3, title = {The non-planar amide group.}, author = {F K Winkler and J D Dunitz}, year = {1971}, doi = {10.1016/0022-2836(71)90419-0}, url = {https://pubmed.ncbi.nlm.nih.gov/5283751/}, note = {Source identifier: 5283751} }