WASET
    Stephanie Russo Fabris and  Edmara Thays Neres Menezes and  Ruirogeres dos Santos Cruz and  Lucio Leonardo Siqueira Santos and  Suzana Leitao Russo,  Monitoring Patents Using the Statistical Process Control.   journal   = {International Journal of Economics and Management Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2012, vol. 67(7). 1950 - 1953
    [viewed 28 March 2024]. Available from: https://publications.waset.org/pdf/5604.