@book{AST_1989__169-170__1_0, author = {Babbitt, D. G. and Varadarajan, V. S.}, title = {Local moduli for meromorphic differential equations}, series = {Ast\'erisque}, publisher = {Soci\'et\'e math\'ematique de France}, number = {169-170}, year = {1989}, zbl = {0683.34003}, mrnumber = {1014083}, language = {en}, url = {http://www.numdam.org/item/AST_1989__169-170__1_0} }
Babbitt, D. G.; Varadarajan, V. S. Local moduli for meromorphic differential equations. Astérisque, no. 169-170 (1989), 221 p. http://www.numdam.org/item/AST_1989__169-170__1_0/
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