Shaolin Hu Karl Meinke Rushan Chen Ouyang Huajiang Iterative Estimators of Parameters in Linear Models with Partially Variant Coefficients. 179-187 2007 17 Applied Mathematics and Computer Science 2 http://dx.doi.org/10.2478/v10006-007-0017-0 db/journals/amcs/amcs17.html#HuMCH07