@article{10_4064_sm_88_3_279_287,
     author = {Wies{\l}aw Paw{\l}ucki and Wies{\l}aw Ple\'sniak},
     title = {Extension of $C^{\ensuremath{\infty}}$ functions from sets with polynomial cusps},
     journal = {Studia Mathematica},
     pages = {279--287},
     publisher = {mathdoc},
     volume = {88},
     number = {3},
     year = {1988},
     doi = {10.4064/sm-88-3-279-287},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-88-3-279-287/}
}