TY  - JOUR
AU  - Mansour, Toufik
AU  - Shattuck, Mark
TI  - Counting peaks and valleys in a partition of a set
JO  - Journal of integer sequences
PY  - 2010
VL  - 13
IS  - 6
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JIS_2010__13_6_a5/
LA  - en
ID  - JIS_2010__13_6_a5
ER  -