On the Determination and Construction of Optimal Block Designs in the Presence of Linear Trends
研究了在区组内存在未知或不可控线性趋势时，如何确定和构造通用最优设计，适用于v个处理、b个区组、每个区组大小为k的实验场景。
Abstract This article considers experimental situations in which v treatments are to be applied to experimental units arranged in b blocks of size k and where there may be unknown or uncontrollable linear trends (possibly different) within blocks. Methods are given for determining and constructing universally optimal designs for such situations. Key Words: BIB designSemibalanced arrayUniversally optimal