TY  - DATA
AU  - Adeleke, S. A.
AU  - Neumann, P. M.
TI  - Relations related to betweenness
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470402129 (online)
PY  - 1998///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0623
ER  -