APA citiranje
Est, W. T. v. (1950). A Generalization of a theorem of J.Nielsen concerning hyperbolic groups.
Chicago Style (17th ed.) Citation
Est, Willem Titus van. A Generalization of a Theorem of J.Nielsen Concerning Hyperbolic Groups. Utrecht, 1950.
MLA citiranje
Est, Willem Titus van. A Generalization of a Theorem of J.Nielsen Concerning Hyperbolic Groups. 1950.
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