@article{GDZPPN002110164, title = {Poincar\'e series and holomorphic averaging.}, journal = {Inventiones mathematicae}, volume = {110}, year = {1992}, pages = {23-28}, zbl = {0769.30036}, url = {http://dml.mathdoc.fr/item/GDZPPN002110164} }
Barrett, David E.; Diller, Jeffrey. Poincaré series and holomorphic averaging.. Inventiones mathematicae, Tome 110 (1992) pp. 23-28. http://gdmltest.u-ga.fr/item/GDZPPN002110164/