VentQsys: Low-cost open IoT system for \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$$CO_2$$\end{document}CO2 monitoring in classrooms

Wireless networks, 2021-01, Vol.27 (8), p.5313-5327 [Peer Reviewed Journal]

The Author(s) 2021 ;ISSN: 1022-0038 ;EISSN: 1572-8196 ;DOI: 10.1007/s11276-021-02799-5

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