Wolhbier,R.H.: Mechanical Conveying. ISBN 0878491198 . 2000.
Fayed,M.E., Skocir,T.S.:Mechanical Conveyors. ISBN 1-56676-416-5. Technomic
Publishing Company, Inc. 1997.
Shapiro,H.I., Shapiro,J.P., Shapiro,L.K.: Cranes and Derrics. Third edition. ISBN 0-07-057889-3.McGraw-Hill Companies, Inc., USA, 2000