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Title
Хачек / Оптика 
Hatschek/optik
Hatschek/optique
Hatschek/opticsOrigin
Subject
| it is an abstract work. you can read the words hatschek and optik. paul hatschek is the author of the book "optik fuer den praktiker (optics for the praticioner) that was publishd in 1941 in halle. |
Description
| il s'agit d'une oeuvre abstraite. on peut lire les mots hatschek et optik. paul hatschek est l'auteur de livre "optik fuer den praktiker"(optique pour le practicien) publié en 1941 à halle. |
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