https://www.efecon.tuiasi.ro/research-article/hydrothermal-synthesis-of-copper-%d7%80%d7%80-oxide-nanoparticles-with-highly-enhanced-btex-gas-sensing-performance-using-chemiresistive-sensor/ EFECON Sun, 22 May 2022 17:38:24 +0000 hourly 1 https://wordpress.org/?v=6.1.1