Clans
Compositio Mathematica, Tome 17 (1965-1966), pp. 172-189. 
@article{CM_1965-1966__17__172_0,
     author = {Wyler, Oswald},
     title = {Clans},
     journal = {Compositio Mathematica},
     pages = {172--189},
     publisher = {Kraus Reprint},
     volume = {17},
     year = {1965-1966},
     mrnumber = {197368},
     zbl = {0146.02004},
     language = {en},
     url = {http://www.numdam.org/item/CM_1965-1966__17__172_0/}
}
TY  - JOUR
AU  - Wyler, Oswald
TI  - Clans
JO  - Compositio Mathematica
PY  - 1965-1966
SP  - 172
EP  - 189
VL  - 17
PB  - Kraus Reprint
UR  - http://www.numdam.org/item/CM_1965-1966__17__172_0/
LA  - en
ID  - CM_1965-1966__17__172_0
ER  - 
%0 Journal Article
%A Wyler, Oswald
%T Clans
%J Compositio Mathematica
%D 1965-1966
%P 172-189
%V 17
%I Kraus Reprint
%U http://www.numdam.org/item/CM_1965-1966__17__172_0/
%G en
%F CM_1965-1966__17__172_0
Wyler, Oswald. Clans. Compositio Mathematica, Tome 17 (1965-1966), pp. 172-189. http://www.numdam.org/item/CM_1965-1966__17__172_0/

Reinhold Baer, [1] Free sums of groups and their generalizations. An analysis of the associative law. Amer. J. Math. 71, 706-742 (1949). | MR | Zbl

Garrett Birkhoff, [2] Lattice Theory. Amer. Math. Soc. Colloquium Publications, vol. XXV. Revised Edition. New York, 1948. | MR | Zbl

N. Bourbaki, [3] Eléments de mathématique. Livre VI, Intégration, ch. I-IV. Paris, 1952. | Zbl

P.R. Halmos, [4] Measure Theory. New York, 1950. | MR | Zbl

D.M. Kan, [5] Adjoint functors. Trans. Amer. Math. Soc. 87, 294-329 (1958). | MR | Zbl

Saunders Maclane, [6] Homology. Grundlehren der mathematischen Wissenschaften, Band114. Berlin, Göttingen, Heidelberg 1963. | MR | Zbl

Oswald Wyler, [7] Über einen Rangbegriff in der Theorie der Ringe, speziell der regulären Ringe. Compositio Math. 9, 193-208 (1951). | Numdam | MR | Zbl