Ctrnactova*, H. a Banyr**, J. (1997) „History and Present State of Chemistry Teaching in Czech Republic", Chemické listy, 91(1). Dostupné z: http://w-ww.chemicke-listy.cz/ojs3/index.php/chemicke-listy/article/view/2808 (Viděno: 29 listopad 2024).