A note on the subclass algebra.
Karlof, John
International Journal of Mathematics and Mathematical Sciences, Tome 3 (1980), p. 401-403 / Harvested from The Electronic Library of Mathematics
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Publié le : 1980-01-01
DOI : https://doi.org/10.1155/S0161171280000282
EUDML-ID : urn:eudml:doc:44849 
@article{03681982,
     title = {A note on the subclass algebra.},
     journal = {International Journal of Mathematics and Mathematical Sciences},
     volume = {3},
     year = {1980},
     pages = {401-403},
     doi = {10.1155/S0161171280000282},
     zbl = {0437.20004},
     language = {en},
     url = {http://dml.mathdoc.fr/item/03681982}
}

Karlof, John. A note on the subclass algebra.. International Journal of Mathematics and Mathematical Sciences, Tome 3 (1980) pp. 401-403. doi : 10.1155/S0161171280000282. http://gdmltest.u-ga.fr/item/03681982/