@article{MAN_1927__97_182664,
     author = {T.R. Hollcroft},
     title = {On the reality of singularities of plane curves},
     journal = {Mathematische Annalen},
     pages = {775--787},
     publisher = {mathdoc},
     volume = {97},
     year = {1927},
     zbl = {53.0615.12},
     url = {http://geodesic.mathdoc.fr/item/MAN_1927__97_182664/}
}