WASET
    Stephen V. Crowder and  Jonathan W. Lane,  The Use of Degradation Measures to Design Reliability Test Plans.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2014, vol. 86(2). 347 - 353
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/9997561.