The paper presents a numerical method of kinematical analysis of the articulated quadrilateral mechanism, using the principle of virtual mechanical work for establishing the relations of connection between the kinematical parameters describing the movement of its elements.
 Florin Bauşic, Mecanica Teoretică.Cinematica, Bucureşti: Editura Conspres, 2004
 Staicu S., Kinematics of translation-rotation hybrid parallel robot, Romanian Journal of Technical Sciences-Applied Mechanics, 2015; 60, pp. 171-183.
 Tătaru V.D., Tătaru M.B., Incremental numerical method used for the cinematic analysis of the four-bar linkage mechanism, Romanian Journal of Technical Sciences-Applied Mechanics, 2016; 61(3), pp. 222-231.