@article{JCA_2008_15_2_JCA_2008_15_2_a15,
     author = {A. N. Zachos and G. Zouzoulas},
     title = {An {Evolutionary} {Structure} of {Convex} {Quadrilaterals}},
     journal = {Journal of convex analysis},
     pages = {411--426},
     publisher = {mathdoc},
     volume = {15},
     number = {2},
     year = {2008},
     url = {http://geodesic.mathdoc.fr/item/JCA_2008_15_2_JCA_2008_15_2_a15/}
}