L'expérience #20
| Series | Batman |
| Number | #20 |
| Publisher | Panini Comics |
| Date | 2007-01 |
| Type | Comic Book, Softcover |
| Language | French |
| Artist | Al Barrionuevo, Ramon Bachs, Doug Mahnke |
| Colorist | Brad Anderson, Jason Wright |
| Inker | BIT, Nathan Massengill, Tom Nguyen |
| Letterer | Christophe Semal |
| Translator | Sophie Viévard |
| Writer | A.J. Lieberman, David Lapham, Judd Winick |
| Copyright Holder | DC Comics, Panini France S.A. |
| Original Publisher | DC |
| Genre | Superhero |
| Published in | France |
| Notes | Contains : Batman # 645 Batman : Gotham Knights # 64-65 Detective Comics # 811 |
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