TY  - DATA
AU  - Hopfner, R.
AU  - Locherbach, E.
TI  - Limit theorems for null recurrent Markov processes 
T2  - Memoirs of the American Mathematical Society, 
SN  - 9781470403669 (online)
PY  - 2003///
CY  - Providence, R.I.
PB  - American Mathematical Society
UR  - http://www.ams.org/memo/0768
ER  -