Note—“A Perturbation Scheme to Improve Hillier's Solution to the Facilities Layout Problem”: A Clarification
澄清了Picone和Wilhelm（1984）在改进Hillier设施布局问题解法时，无意中将方形工厂的优化结果报告为Nugent矩形工厂问题的解，并呼吁研究工厂形状与布局的最优关系。
Solutions to Nugent's plant location problems may be improved by using square plant shapes. These improved results were inadvertently reported by Picone and Wilhelm (Picone, C. J., W. E. Wilhelm. 1984. A perturbation scheme to improve Hillier's solution to the facilities layout problem. Management Sci. 30 1238–1249.) as solutions to Nugent's problems, which involve rectangular plants. Hopefully, this clarification will stimulate research to define optimal relationships between plant shape and layout.