Influence of the treatment period on the morphology and the chemical composition of the thermally activated orthodontic archwiresPetrov, Valery; Terzieva, Stanimira; Tumbalev, V.; Mikli, Valdek; Andreeva, Laura; Stoyanova-Ivanova, AngelinaBulgarian chemical communications2015 / p. 234-238 : ill

Structural and morphological characterization of heat-activated nickel-titanium archwiresIlievska, Ivana; Petrov, Valery; Andreeva, Laura; Mikli, ValdekBulgarian chemical communications2017 / p. 33-39 : ill http://www.bcc.bas.bg/

Study of the impact of the treatment period on the surface characteristics of nitinol heat-activated orthodontic wiresPetrov, Valery; Andreeva, Laura; Terzieva, Stanimira; Stoyanova-Ivanova, Angelina; Kovacheva, Daniela; Mikli, Valdek; Ilievska, IvanaInternational journal of science and research (IJSR)2015 / p. 3190-3193 : ill http://www.ijsr.net/archive/v4i4/SUB153329.pdf