| Verfasser | Häufigkeit |
| Iwasa, Megumi 1958- |
13 |
| Mühle, Jörg 1973- |
8 |
| Gräfe, Ursula 1956- |
7 |
| Takabatake, Jun 1948- |
4 |
| Iwasa, Miyoko |
3 |
| Iwasa, Miyoko 1926-2020 |
3 |
| Aya, Shirou |
2 |
| Iwasa, Janet 1978- |
2 |
| Iwasa, Masashi |
2 |
| Iwasa, Miyoko 1926- |
2 |
| Iwasa, Yoshiaki |
2 |
| Kitabatake, Chikafusa 1293-1354 |
2 |
| Marshall, Wallace F. 1968- |
2 |
| Matsuo, Naoki |
2 |
| Iwasa, Masaru |
1 |
| Iwasa, Megumi |
1 |
| Iwasa, Mikizō 1929- |
1 |
| Iwasa, Ujitoshi |
1 |
| Kaburaki, Masaki |
1 |
| Kidō, Saizō 1915- |
1 |