If CPM is so bad, why have we been using it so long?Koskela, Lauri; Howell, Greg; Pikas, Ergo; Dave, BhargavProceedings of IGLC22 : 22nd Annual Conference of the International Group for Lean Construction : Understanding and Improving Project Based Production : Oslo Norway, June 25th-27th 20142014 / p. 27-37 Machinery utilization monitoring and pause identification prototype model designAruvÀli, Tanel; Serg, Risto; Otto, TaunoProceedings of the 8th International Conference of DAAAM Baltic Industrial Engineering, 19-21st April 2012, Tallinn, Estonia. 12012 / p. 256-261 : ill Programming time estimation and production planning steps on welding robot cells in SME-sSarkans, Martinš; Eerme, MartinAnnals of DAAAM for 2011 & proceedings of the 22nd International DAAAM Symposium "Intelligent Manufacturing & Automation : Power of Knowledge and Creativity" : 23-26 November 2011, Vienna, Austria2011 / p. 1485-1486 : ill https://www.researchgate.net/publication/289353214_Programming_time_estimation_and_production_planning_steps_on_welding_robot_cells_in_SME-S