| |
| 2008 | ||
|---|---|---|
| 5 | EE | Helmut Karzel, Mario Marchi: Introduction of measures for segments and angles in a general absolute plane. Discrete Mathematics 308(2-3): 220-230 (2008) |
| 4 | EE | Helmut Karzel, Silvia Pianta: Binary operations derived from symmetric permutation sets and applications to absolute geometry. Discrete Mathematics 308(2-3): 415-421 (2008) |
| 2002 | ||
| 3 | EE | Luca Giuzzi, Helmut Karzel: Co-Minkowski spaces, their reflection structure and K-loops. Discrete Mathematics 255(1-3): 161-179 (2002) |
| 2 | EE | Helmut Karzel, Silvia Pianta, Elena Zizioli: K-loops derived from Frobenius groups. Discrete Mathematics 255(1-3): 225-234 (2002) |
| 1999 | ||
| 1 | EE | Helmut Karzel: Recent developments on absolute geometries and algebraization by K-loops. Discrete Mathematics 208-209: 387-409 (1999) |
| 1 | Luca Giuzzi | [3] |
| 2 | Mario Marchi | [5] |
| 3 | Silvia Pianta | [2] [4] |
| 4 | Elena Zizioli | [2] |