BIBCYT http://bibcyt.ucla.edu.ve/cgi-win/be_alex.exe?Ultimo&Nombrebd=BIBCYT UCLA - Biblioteca de Ciencias y Tecnologia Felix Morales Bueno Hu, Feifang P Principal Rosenberger, William F. P Principal Zhang, Li-Xin P Principal Asymptotically best response-adaptive randomization procedures p1911-1922, 12p Duan, Liangliang P Principal Hu, Feifang S Secundario Doubly adaptive biased coin designs with heterogeneous responses Septiembre pp. 3220 - 3230