| Author | Titles | | 1.
| Knopff, Fernand, 1858-1921 | 2 | | 2.
| Knöpfli, Claudio, 1954- | 1 | | 3.
| Knöpfli, Giovani | 1 | | 4.
| Knopfli, Rui, 1932-1997 | 8 | | 5.
| Knopfli, Rui Manuel Correia, 1932-1997 | 0 | | 6.
| Author is: Knopfli, Rui, 1932-1997 | 8 | | 7.
| Knorpp, Elina | 1 | | 8.
| Knörr Argote, Eduardo | 4 | | 9.
| Knorr, Eduardo | 0 | | 10.
| Author is: Knörr Argote, Eduardo | 4 | | 11.
| Knorr, Ernesto, 1957- | 1 | | 12.
| Knorr, Karen, 1954- | 4 |
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