Problem 11105. - Juan-Bosco Romero Márquez; Rick Luttmann; Miguel de Guzman; G. Donald Chakerian (Am. Math. Mon., 2004)

Cevians and Centroids: 11105. - Juan-Bosco Romero Márquez; Rick Luttmann; Miguel de Guzman; G. Donald Chakerian; Li Zhou 001 (Am. Math. Mon., 2006)