Ivanov, Volodymyr, Pavlo Trostianko, Sergiy Kovalenko, Anastasia Volodchenko, Tetyana Chernozhuk, Darya Stepaniuk, and Oleg Kalugin. “Quantum-Chemical Calculations of Electronic Spectra Absorption: Ab Initio or Semiempirical Methods?”. Kharkiv University Bulletin. Chemical Series, no. 36 (March 29, 2021): 33-43. Accessed May 4, 2024. https://periodicals.karazin.ua/chemistry/article/view/18680.