@misc{indiciae6381954c2937, title = {Alternative barrier technique.}, author = {B G Bisang and R L Engelmeier}, year = {1993}, doi = {10.1111/j.1532-849x.1993.tb00395.x}, url = {https://pubmed.ncbi.nlm.nih.gov/8242167/}, note = {Source identifier: 8242167} }