@article{ASENS_1988_4_21_2_259_0,
     author = {Jurkat, W. B. and Zwiesler, H. J.},
     title = {A reduction theory of second order meromorphic differential equations. {II}},
     journal = {Annales scientifiques de l'\'Ecole Normale Sup\'erieure},
     pages = {259--286},
     publisher = {Elsevier},
     volume = {Ser. 4, 21},
     number = {2},
     year = {1988},
     doi = {10.24033/asens.1558},
     zbl = {0681.34010},
     mrnumber = {956768},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/asens.1558/}
}