Development of enhanced 3D flower like Gd doped NiO (GNO) based LPG gas sensor. Indian Journal of Chemical Technology (IJCT), [S. l.], v. 30, n. 2, p. 205–210, 2023. DOI: 10.56042/ijct.v30i2.63383 . Disponível em: https://or.niscpr.res.in/index.php/IJCT/article/view/1280. Acesso em: 26 may. 2026.