@article{CRMATH_2010__348_23-24_1273_0,
     author = {Fruchard, Augustin and Sch\"afke, Reinhard},
     title = {Composite asymptotic expansions and turning points of singularly perturbed ordinary differential equations},
     journal = {Comptes Rendus. Math\'ematique},
     pages = {1273--1277},
     publisher = {Elsevier},
     volume = {348},
     number = {23-24},
     year = {2010},
     doi = {10.1016/j.crma.2010.10.027},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.crma.2010.10.027/}
}