@article{GDZPPN00210038X, title = {Natural coefficients and invariants for Markov-shifts.}, journal = {Inventiones mathematicae}, volume = {75}, year = {1984}, pages = {15-32}, zbl = {0563.28008}, url = {http://dml.mathdoc.fr/item/GDZPPN00210038X} }
Schmidt, Klaus; Parry, William. Natural coefficients and invariants for Markov-shifts.. Inventiones mathematicae, Tome 75 (1984) pp. 15-32. http://gdmltest.u-ga.fr/item/GDZPPN00210038X/