Sergei A. Abramov. On ramification indices of formal solutions of constructive linear ordinary differential systems. Journal of Symbolic Computation, 79:475-481, 2017. [doi]
@article{Abramov17, title = {On ramification indices of formal solutions of constructive linear ordinary differential systems}, author = {Sergei A. Abramov}, year = {2017}, doi = {10.1016/j.jsc.2016.03.001}, url = {http://dx.doi.org/10.1016/j.jsc.2016.03.001}, researchr = {https://researchr.org/publication/Abramov17}, cites = {0}, citedby = {0}, journal = {Journal of Symbolic Computation}, volume = {79}, pages = {475-481}, }