@article{MM2_1981__35_154798,
     author = {Jan Jaworowski},
     title = {An {Equivariant} {Extension} {Theorem} and {G-Retracts} with a {Finite} {Structure.}},
     journal = {Manuscripta mathematica},
     pages = {323--330},
     publisher = {mathdoc},
     volume = {35},
     year = {1981},
     zbl = {0488.54009},
     url = {http://geodesic.mathdoc.fr/item/MM2_1981__35_154798/}
}