| Periodical/Year | 2020 |
| Periodical/Date | April |
| Periodical/Issue | 4 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | Mai |
| Periodical/Issue | 5 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | December |
| Periodical/Issue | 12 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | Juni |
| Periodical/Issue | 6 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | Januar |
| Periodical/Issue | 1 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | Februar |
| Periodical/Issue | 2 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | März |
| Periodical/Issue | 3 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | September |
| Periodical/Issue | 9 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | October |
| Periodical/Issue | 10 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | November |
| Periodical/Issue | 11 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | Juli |
| Periodical/Issue | 7 |
| Periodical / Volume | 50 |
| Periodical/Year | 2020 |
| Periodical/Date | August |
| Periodical/Issue | 8 |
| Periodical / Volume | 50 |
