1. T. Andreescu, D. Andrica: Complex numbers from a to... Creator: Lenker, Rostislav Format: bez média and svazek Type: model:article and TEXT Language: English Description: Autor recenze: Rostislav Lenker Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public
2. T. Andreescu, Z. Feng: 103 trigonometry problems-from the training of the usa imo team Creator: Lenker, Rostislav Format: bez média and svazek Type: model:article and TEXT Language: English Description: Autor recenze: Rostislav Lenker Rights: http://creativecommons.org/publicdomain/mark/1.0/ and policy:public