no. 1
Comments on the completeness of order complements and on the Prüfer numbers
Annales de la Faculté des sciences de Toulouse : Mathématiques, Série 5, Tome 10 (1989) no. 1, pp. 65-73. 
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     title = {Comments on the completeness of order complements and on the {Pr\"ufer} numbers},
     journal = {Annales de la Facult\'e des sciences de Toulouse : Math\'ematiques},
     pages = {65--73},
     publisher = {Universit\'e Paul Sabatier},
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     volume = {Ser. 5, 10},
     number = {1},
     year = {1989},
     mrnumber = {1425744},
     zbl = {0657.06006},
     language = {en},
     url = {http://archive.numdam.org/item/AFST_1989_5_10_1_65_0/}
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Dokas, Labros; Stabakis, John. Comments on the completeness of order complements and on the Prüfer numbers. Annales de la Faculté des sciences de Toulouse : Mathématiques, Série 5, Tome 10 (1989) no. 1, pp. 65-73. http://archive.numdam.org/item/AFST_1989_5_10_1_65_0/

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[2] Erne (M.). - Posets isomorphic to their extensions, Order, t. 2, 1985, p. 199-210. | MR | Zbl

[3] Fuchs (L.). - Infinite Abelian Groups, Tomes I, II, Academic Press N. York London 1973. | MR | Zbl

[4] Redei (L.).- Algebra., Pergamon Press. Oxford, 1967. | Zbl

[5] Stratigopoulos (D.), Stabakis (J.).- Sur les ensembles ordonnés (f*-coupes), C.R.Acad. Paris, t. 285, 1977, p. 81-84. | MR | Zbl