Influence of heating conditions on the formation of sol-gel derived calcium hydroxyapatiteBogdanoviciene, Irma; Beganskiene, Aldona; Kareiva, Aivaras; Juškėnas, Remigijus; Selskis, Algirdas; Ramanauskas, Rimantas; Tõnsuaadu, Kaia; Mikli, ValdekChemija2010 / 2/4, p. 98-105 : ill http://mokslozurnalai.lmaleidykla.lt/publ/0235-7216/2010/2-4/98-105.pdf