@article {Estimation1963,
title = {Estimation of Quasi-Linear Trend and Seasonal Variation},
year = {1963},
url = {https://www.esri.ie/publications/estimation-of-quasi-linear-trend-and-seasonal-variation},
author = {Leser, Conrad},
journal = {Journal of the American Statistical Association, Vol. 58 No. 304, December 1963},
}