To cite edcc in publications use:
Weicheng Zhu, Changsoon Park (2013). edcc: An R Package for the Economic Design of the Control Chart. Journal of Statistical Software, 52(9), 1-24. URL http://www.jstatsoft.org/v52/i09/.
Corresponding BibTeX entry:
@Article{, title = {{edcc}: An {R} Package for the Economic Design of the Control Chart}, author = {Weicheng Zhu and Changsoon Park}, journal = {Journal of Statistical Software}, year = {2013}, volume = {52}, number = {9}, pages = {1--24}, url = {http://www.jstatsoft.org/v52/i09/}, }