拉瑞·尼文

《圆环世界》是美国小说家拉瑞·尼文创作于1970年的雨果奖和星云奖获奖科幻小说，故事发生在他所设定的已知空间宇宙中。这部作品被广泛认同为一部科幻小说的杰作。该作品有三部续集，并且和设定在已知空间的其他故事有千丝万缕别的关系。 …

World of Ptavvs is a science fiction novel by Larry Niven, first published in 1966 and set in his Known Space universe. It was Niven's first published novel and is based on a 1965 short story of the same name.