@ARTICLE {, title = {Loedelove diagramy v špeciálnej teórii relativity 1}, author = {Lacsný, Boris}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2006}, volume = {35}, number = {1}, pages = {32--36}, issn = {1335-4981}, abstract = {In this work we use Loedel diagrams to present geometric derivation and explanation of the contraction of length and dilation of time.}, }