Geodesic
The property of universality for some monoid algebras over non-commutative rings
Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2006), pp. 102-105.

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We define on an arbitrary ring A a family of mappings (σx,y) subscripted with elements of a multiplicative monoid G. The assigned properties allow to call these mappings derivations of the ring A. A monoid algebra of G over A is constructed explicitly, and the universality property of it is shown. 
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Elena P. Cojuhari. The property of universality for some monoid algebras over non-commutative rings. Buletinul Academiei de Ştiinţe a Republicii Moldova. Matematica, no. 2 (2006), pp. 102-105. https://geodesic-test.mathdoc.fr/item/BASM_2006_2_a11/

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