Geodesic
Strong insertion of an $\alpha$-continuous function
Vladikavkazskij matematičeskij žurnal, Tome 15 (2013) no. 2, pp. 69-76 Cet article a éte moissonné depuis la source Math-Net.Ru

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Necessary and sufficient conditions in terms of lower cut sets are given for the strong insertion of an $\alpha$-continuous function between two comparable real-valued functions. 
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M. Mirmiran. Strong insertion of an $\alpha$-continuous function. Vladikavkazskij matematičeskij žurnal, Tome 15 (2013) no. 2, pp. 69-76. http://geodesic.mathdoc.fr/item/VMJ_2013_15_2_a7/

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