TY  - RPRT
TI  - Ordered Sets, Complexes and the Problem of Compactification.
AU  - J W Alexander
PY  - 1939
DO  - 10.1073/pnas.25.6.296
UR  - https://pubmed.ncbi.nlm.nih.gov/16577902/
ID  - 16577902
ER  -