KUNJU MOL RAJ, Robin, Pavel DLOUHÝ,
Vilém KOVAČ a
Libuše TURINSKÁ. Investing in Pairs of Precious Metals: Portfolio Theory Application.
Acta Montanistica Slovaca. Košice: Technical University of Košice, 2023, roč. 28, č. 4, s. 941-951. ISSN 1335-1788.