no. 3
Correction to “On the purity of the branch locus”
Compositio Mathematica, Tome 26 (1973) no. 3, pp. 175-180. 
@article{CM_1973__26_3_175_0,
     author = {Altman, Allen B. and Kleiman, Steven},
     title = {Correction to ``On the purity of the branch locus''},
     journal = {Compositio Mathematica},
     pages = {175--180},
     publisher = {Noordhoff International Publishing},
     volume = {26},
     number = {3},
     year = {1973},
     zbl = {0281.14003},
     mrnumber = {347825},
     language = {en},
     url = {www.numdam.org/item/CM_1973__26_3_175_0/}
}
Altman, Allen B.; Kleiman, Steven L. Correction to “On the purity of the branch locus”. Compositio Mathematica, Tome 26 (1973) no. 3, pp. 175-180. http://www.numdam.org/item/CM_1973__26_3_175_0/

A. Altman and S. Kleiman [1] Introduction to Grothendieck Duality Theory, Lecture Notes in Math. Vol. 146, Springer-Verlag (1970) (cited GD). | MR 274461 | Zbl 0215.37201

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M. Atiyah and I. Macdonald [3] Introduction to Commutative Algebra, Addison-Wesley (1969). | MR 242802 | Zbl 0175.03601

A. Grothendieck and J. Dieudonné [4] Éléments de Géometrie Algébrique I, Springer-Verlag (1971) (cited EGA I). (Oblatum 12-II-1973). | Numdam | Zbl 0203.23301