@ARTICLE {, title = {Prof. RNDr. Beloslav Riečan, DrSc. Spiritus mathematicus et musicus slovakiensis}, author = {Dvurečenskij, Anatolij}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2011}, volume = {40}, number = {4}, pages = {1--6}, issn = {1335-4981}, }