TY  - DATA
AU  - Montejano, Luis
TI  - [Beta]-homotopy equivalences have [alpha]-cross sections 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470406844 (online)
PY  - 1983///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0274
ER  -