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<http://experiment.worldcat.org/entity/work/data/25294893.nt> <http://schema.org/about> <http://worldcat.org/entity/work/id/25294893> .
<http://experiment.worldcat.org/entity/work/data/25294893#Event/since_1901> <http://schema.org/name> "Since 1901" .
<http://experiment.worldcat.org/entity/work/data/25294893#Event/since_1901> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Event> .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/problem> <http://schema.org/name> "Problem." .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/problem> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Topic> .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomie> <http://schema.org/name> "Astronomie." .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomie> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Topic> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomie> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomija> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/23927301> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/717936468> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/name> "Probleme der modernen Astronomie" .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/246047956> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/author> <http://worldcat.org/entity/person/id/2689697644> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/author> <http://worldcat.org/entity/person/id/2635078419> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://id.worldcat.org/fast/819673> .
<http://worldcat.org/entity/work/id/25294893> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Book> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://experiment.worldcat.org/entity/work/data/25294893#Event/since_1901> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/name> "Probleme der modernen astronomie" .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/452640681> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/459001988> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://id.loc.gov/authorities/subjects/sh85009003> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/creator> <http://worldcat.org/entity/person/id/2635078419> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/799965812> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/contributor> <http://worldcat.org/entity/person/id/2689697644> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://experiment.worldcat.org/entity/work/data/25294893#Topic/sterrenkunde> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/681587884> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/name> "Probleme der modernen Astronomie, von Prof. Dr. S. Oppenheim" .
<http://worldcat.org/entity/work/id/25294893> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/CreativeWork> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/workExample> <http://www.worldcat.org/oclc/488364752> .
<http://worldcat.org/entity/work/id/25294893> <http://schema.org/about> <http://experiment.worldcat.org/entity/work/data/25294893#Topic/problem> .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomija> <http://schema.org/name> "Astronomija." .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/astronomija> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Topic> .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/sterrenkunde> <http://schema.org/name> "Sterrenkunde." .
<http://experiment.worldcat.org/entity/work/data/25294893#Topic/sterrenkunde> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://schema.org/Topic> .