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Alawode, O. "Some (v + 1, b + r + λ + 1, r + λ + 1, k, λ + 1) Balanced Incomplete Block Designs (BIBDs) from Lotto Designs (LDs)". World Academy of Science, Engineering and Technology, International Science Index 68, International Journal of Mathematical, Computational, Physical, Electrical and Computer Engineering, (2012), 6(8), 1194 - 1197.