TY  - JOUR
AU  - Hao Pan
AU  - Zhi-Wei Sun
TI  - A characterization of covering equivalence
JO  - Acta Arithmetica
PY  - 2007
SP  - 397
EP  - 402
VL  - 129
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/aa129-4-8/
DO  - 10.4064/aa129-4-8
LA  - en
ID  - 10_4064_aa129_4_8
ER  -