@article{MEM_2010_39_1_a46,
     author = {{\CYRT}{\cyru}{\cyrp}{\cyra}{\cyrr}{\cyro}{\cyrv}, {\CYRG}{\cyre}{\cyro}{\cyrr}{\cyrg}{\cyri}},
     title = {{\CYRV}{\cyrhrdsn}{\cyrz}{\cyrm}{\cyro}{\cyrzh}{\cyrn}{\cyro}{\cyrs}{\cyrt}{\cyri} {\cyrz}{\cyra} {\cyrr}{\cyre}{\cyra}{\cyrl}{\cyri}{\cyrz}{\cyra}{\cyrc}{\cyri}{\cyrya} {\cyrn}{\cyra} {\cyrr}{\cyra}{\cyrz}{\cyrd}{\cyre}{\cyrl}{\cyra} {\textquotedblleft}{\cyrs}{\cyrhrdsn}{\cyrz}{\cyrd}{\cyra}{\cyrv}{\cyra}{\cyrn}{\cyre} {\cyri} {\cyrp}{\cyru}{\cyrb}{\cyrl}{\cyri}{\cyrk}{\cyru}{\cyrv}{\cyra}{\cyrn}{\cyre} {\cyrn}{\cyra} {{\CYRI}{\cyrn}{\cyrt}{\cyre}{\cyrr}{\cyrn}{\cyre}{\cyrt}} {\cyrs}{\cyrt}{\cyrr}{\cyra}{\cyrn}{\cyri}{\cyrc}{\cyri}{\textquotedblright} {\cyrv} 8 {\cyrk}{\cyrl}{\cyra}{\cyrs}},
     journal = {Mathematics and Education in Mathematics},
     pages = {373--378},
     publisher = {mathdoc},
     volume = {39},
     number = {1},
     year = {2010},
     language = {bg},
     url = {http://geodesic.mathdoc.fr/item/MEM_2010_39_1_a46/}
}