Projective object (English Wikipedia)

Analysis of information sources in references of the Wikipedia article "Projective object" in English language version.

refsWebsite

Global rank English rank

5^th place

5^th place

2,656^th place

5,310^th place

451^st place

277^th place

ams.org (Global: 451^st place; English: 277^th place)

mathscinet.ams.org

Semadeni (1963) Semadeni, Z. (1963), "Projectivity, injectivity and duality", Rozprawy Mat., 35, MR 0154832

icm.edu.pl (Global: 2,656^th place; English: 5,310^th place)

pldml.icm.edu.pl

Semadeni (1963) Semadeni, Z. (1963), "Projectivity, injectivity and duality", Rozprawy Mat., 35, MR 0154832

worldcat.org (Global: 5^th place; English: 5^th place)

search.worldcat.org

Mac Lane (1978, p. 118) Mac Lane, Saunders (1978), Categories for the Working Mathematician (Second ed.), New York, NY: Springer New York, p. 114, ISBN 1441931236, OCLC 851741862