TY  - DATA
AU  - Zaustinsky, Eugene Michael.
TI  - Spaces with non-symmetric distance 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9780821899779 (online)
PY  - 1959///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0034
ER  -