@article{AIHPC_2017__34_4_933_0,
     author = {Olbermann, Heiner},
     title = {Integrability of the {Brouwer} degree for irregular arguments},
     journal = {Annales de l'I.H.P. Analyse non lin\'eaire},
     pages = {933--959},
     publisher = {Elsevier},
     volume = {34},
     number = {4},
     year = {2017},
     doi = {10.1016/j.anihpc.2016.07.002},
     mrnumber = {3661865},
     zbl = {1366.26018},
     language = {en},
     url = {http://www.numdam.org/articles/10.1016/j.anihpc.2016.07.002/}
}