TY  - RPRT
TI  - A topological approach to the matching of single fingerprints 
AU  - Sparrow, Malcolm K
AU  - Sparrow, Penelope J
PY  - 1985
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 500-124
DO  - 10.6028/NBS.SP.500-124
ER  -