TY  - JOUR
AU  - James H. Schmerl
TI  - How many clouds cover the plane?
JO  - Fundamenta Mathematicae
PY  - 2003
SP  - 209
EP  - 211
VL  - 177
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm177-3-2/
DO  - 10.4064/fm177-3-2
LA  - en
ID  - 10_4064_fm177_3_2
ER  -