Benedict Mihály: Introduction to the physics of atoms, molecules and photons. [Online educational package (e-learning lesson/topic)]
Benedict Mihály: Quantum theory of atoms, molecules and their interaction with light. (2013) [Note, textbook]
Fábián László and Szatmári Sándor: Atomfizikai alapismeretek : héjfizika. (2020) [Note, textbook]
Szatmári Sándor: Atomfizika. (2020) [Online educational package (e-learning lesson/topic)]