@article {Zobacova_Scanning_2006, title = {Corrections of magnification and focusing in a cathode lens-equipped scanning electron microscope}, journal = {Scanning}, volume = {vol.~28}, number = {no.~3}, year = {2006}, pages = {155{\textendash}163}, address = {Mahwah NJ USA}, issn = {0161-0457}, author = {Zobacova, J. and Martin Zoba{\v c} and M. Oral and I. M{\"u}llerov{\'a} and L. Frank} }