Long-Hui Chen, Tai-Yue Wang. 2 chart signals. Computers & Industrial Engineering, 47(2-3):195-205, 2004. [doi]
@article{ChenW04-12, title = {2 chart signals}, author = {Long-Hui Chen and Tai-Yue Wang}, year = {2004}, doi = {10.1016/j.cie.2004.07.002}, url = {http://dx.doi.org/10.1016/j.cie.2004.07.002}, researchr = {https://researchr.org/publication/ChenW04-12}, cites = {0}, citedby = {0}, journal = {Computers & Industrial Engineering}, volume = {47}, number = {2-3}, pages = {195-205}, }