Raja Mohd Taufika Raja IsmailMohd Ashraf AhmadMohd Syakirin RamliFairuz Rizal Mohamad RashidiNonlinear Dynamic Modelling and Analysis of a 3-D Overhead Gantry Crane System with Payload Variation.350-3542009EMShttps://doi.org/10.1109/EMS.2009.71https://doi.ieeecomputersociety.org/10.1109/EMS.2009.71conf/ems/2009db/conf/ems/ems2009.html#IsmailARR09