*Vertices 4 1 "Andrej" 0.1201 0.2849 0.5000 ellipse URL "http://mrvar.fdv.uni-lj.si" 2 "Vlado" 0.8188 0.2458 0.5000 box URL "http://vlado.fmf.uni-lj.si" 3 "Pajek" 0.3688 0.7792 0.5000 diamond URL "http://vlado.fmf.uni-lj.si/pub/networks/pajek" 4 "Book" 0.8359 0.8333 0.5000 triangle URL "http://www.cambridge.org/uk/catalogue/catalogue.asp?isbn=0521602629" *Edges 1 2 1 3 1 4 2 3 2 4 3 4