@misc{indiciae1a5142d26feb, title = {Nonresponse in sample surveys: the problem and some solutions.}, author = {D R Brogan}, year = {1980}, doi = {10.1093/ptj/60.8.1026}, url = {https://pubmed.ncbi.nlm.nih.gov/7403278/}, note = {Source identifier: 7403278} }