@misc{indiciae20a42313c4c1, title = {The missing data matrix.}, author = {P Horst}, year = {1968}, doi = {10.1002/1097-4679(196807)24:3<286::aid-jclp2270240307>3.0.co;2-t}, url = {https://pubmed.ncbi.nlm.nih.gov/5661746/}, note = {Source identifier: 5661746} }