@ARTICLE {, title = {Prostriedok na realizáciu „terénnych experimentov“}, author = {Cigánik, Vincent}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2002}, volume = {31}, number = {2}, pages = {38--43}, issn = {1335-4981}, abstract = {The article presents a new educational measuring set CBL2, as an instrument at elementary measurements in exteriors and classrooms. It presents its components. At the end of this article is demonstration of use the CBL2. }, }