• Controlled nanocrystalline precipitation of hydroxyapatite on the surface of microfibrillated cellulose fibersKärner, Kärt; Elomaa, Matti Antero; Kallavus, Urve; Tõnsuaadu, KaiaInternational journal of recent scientific research2017 / p. 20803-20809 : ill http://recentscientific.com/sites/default/files/8807-A-2017.pdf