Bürdek, Bernhard E.. "Clemens Lango: Visuos – a visuospatial operating software for knowledge work" i-com, vol. 3, no. 1, 2004, pp. 39-40. https://doi.org/10.1524/icom.3.1.39.32960
Bürdek, B. (2004) Clemens Lango: Visuos – a visuospatial operating software for knowledge work. i-com, Vol. 3 (Issue 1), pp. 39-40. https://doi.org/10.1524/icom.3.1.39.32960
Bürdek, Bernhard E.. "Clemens Lango: Visuos – a visuospatial operating software for knowledge work" i-com 3, no. 1 (2004): 39-40. https://doi.org/10.1524/icom.3.1.39.32960