@article{JGG_1997_1_2_a3,
     author = {S. Gorjanc},
     title = {The {Pedal} {Surfaces} of {(1,2)-Congruences} with a {One-Parameter} {Set} of {Ellipses}},
     journal = {Journal for geometry and graphics},
     pages = {135--15},
     publisher = {mathdoc},
     volume = {1},
     number = {2},
     year = {1997},
     url = {http://geodesic.mathdoc.fr/item/JGG_1997_1_2_a3/}
}