@misc{indiciaedc5d3e332b33, title = {How to be less invasive.}, author = {A C Powles and E J Campbell}, year = {1979}, doi = {10.1016/0002-9343(79)90079-2}, url = {https://pubmed.ncbi.nlm.nih.gov/463922/}, note = {Source identifier: 463922} }