Ghosh S., Viana J. C., Reis R. L., and Mano J. F.,  "Porous constructs for osteochondral tissue engineering based on cartilage part made of  poly(L-lactic acid) - starch and a bioactive PLLA-HA layer for subchondral bone",  Bioceramics -18, 18th International Symposium of Ceramics in Medicine, 2005.