On the homotopy groups of unions of spaces.
Hilton, P.J.
Commentarii mathematici Helvetici, Tome 29 (1955), p. 59-92 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1955-01-01
EUDML-ID : urn:eudml:doc:139095 
@article{GDZPPN002056488,
     title = {On the homotopy groups of unions of spaces.},
     journal = {Commentarii mathematici Helvetici},
     volume = {29},
     year = {1955},
     pages = {59-92},
     zbl = {0064.17203},
     url = {http://dml.mathdoc.fr/item/GDZPPN002056488}
}

Hilton, P.J. On the homotopy groups of unions of spaces.. Commentarii mathematici Helvetici, Tome 29 (1955) pp. 59-92. http://gdmltest.u-ga.fr/item/GDZPPN002056488/