Теорема компактности — разлика између измена

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* {{Cite book |ref= harv|last=Hummel|first=Christoph|title=Gromov's compactness theorem for pseudo-holomorphic curves |publisher=Birkhäuser |location=Basel, Switzerland |year=1997 |isbn=978-3-7643-5735-1 |oclc= |doi=}}