GUPTA V.K.; PARSAD, RAJENDER; DAS, ASHISH. Variance Balanced Block Designs with Unequal Block Sizes. Utilitas Mathematica , [S. l.], v. 64, 2003. Disponível em: http://utilitasmathematica.com/index.php/Index/article/view/273. Acesso em: 20 apr. 2026.