Sanyu Zhou Jingjing Zhu Defa Wang Simultaneous confidence bands for a percentile hyper-plane with covariates constrained in a restricted range. 301-312 2018 344 J. Comput. Appl. Math. https://doi.org/10.1016/j.cam.2018.05.026 https://www.wikidata.org/entity/Q129792099 db/journals/jcam/jcam344.html#ZhouZW18