https://www.scirp.org/reference/ReferencesPapers?ReferenceID=1991719
Lothian, J. and Morry, M. (1978) A Set of Quality Control Statistics for the X11- ARIMA88 Seasonal...
Lothian, J. and Morry, M. (1978) A Set of Quality Control Statistics for the X11- ARIMA88 Seasonal Adjustment Method. Working Paper, 78-10-005.