SANDVED, Else. A Type of Serially Balanced Experimental Designs. Mathematica Scandinavica, Berkeley, CA, United States, v. 8, p. 43–54, 1960. DOI: 10.7146/math.scand.a-10590. Disponível em: https://journals.msp.org/mscand/article/view/2756. Acesso em: 25 jul. 2026.