TY  - JOUR
AU  - Kenjiro Ogawa
AU  - Morimasa Tsuchiya
TI  - Note on Transformations of Posets with the Same Upper Bound Graph and
      Minimal Elements
JO  - Bulletin of the Malaysian Mathematical Society
PY  - 2006
VL  - 29
IS  - 2
UR  - http://geodesic.mathdoc.fr/item/BMMS_2006_29_2_a7/
ID  - BMMS_2006_29_2_a7
ER  -