TY  - DATA
AU  - Kenyon, Hewitt.
AU  - Morse, Anthony P.
TI  - Web derivatives
T2  - Memoirs of the American Mathematical Society, 
SN  - 9780821899311 (online)
PY  - 1973///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0132
ER  -