Systems-Based Approach to Environmental Investment Analysis Based on the Serbian National List of Environmental Indicators Autori: Jelena Malenović-Nikolić, Dejan Krstić, Biljana Matejević-Nikolić, Janko Čipev, Mina Krstić Izdanje: Sinteza 2021 - International Scientific Conference on Information Technology and Data Related Research DOI: 10.15308/Sinteza-2021-112-117