The following publications are possibly variants of this publication:
- Optimizing picking operations on dual-head placement machinesWilbert E. Wilhelm, Ivette Arambula, Neil Nilanjan D. Choudhry. tase, 3(1):1-15, 2006. [doi]
- Process planning for circuit card assembly on a series of dual head placement machinesNilanjan D. Choudhury, Wilbert E. Wilhelm, Brijesh Rao, Jonathan Gott, Nikhilesh Khotekar. eor, 182(2):626-639, 2007. [doi]