About some bivariate operators of Stancu type. Farcaş, Mircea D. — 2009 Acta Universitatis Apulensis. Mathematics - Informatics
About approximation of B-continuous functions of three variables by GBS operators of Bernstein type on a tetrahedron. Farcaş, Mircea D. — 2008 Acta Universitatis Apulensis. Mathematics - Informatics
On a general class of linear and positive operators. Pop, Ovidiu T.; Fărcaş, Mircea D.; Bărbosu, Dan — 2011 Analele Ştiinţifice ale Universităţii “Ovidius" Constanţa. Seria: Matematică