Frattini Covers and Projective Groups Without the Extension Property.
Ershov, Y. ; Fried, M.
Mathematische Annalen, Tome 250 (1980), p. 233-240 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1980-01-01
EUDML-ID : urn:eudml:doc:163479 
@article{GDZPPN002319926,
     title = {Frattini Covers and Projective Groups Without the Extension Property.},
     journal = {Mathematische Annalen},
     volume = {250},
     year = {1980},
     pages = {233-240},
     zbl = {0475.20021},
     url = {http://dml.mathdoc.fr/item/GDZPPN002319926}
}

Ershov, Y.; Fried, M. Frattini Covers and Projective Groups Without the Extension Property.. Mathematische Annalen, Tome 250 (1980) pp. 233-240. http://gdmltest.u-ga.fr/item/GDZPPN002319926/