Under U.S. copyright law, works published before 1978 are protected for 95 years from the date of first publication. Composition II with Red, Blue, and Yellow was published in 1930. The painting entered the public domain on January 1, 2026—exactly when Duke’s Center for the Study of the Public Domain said it would.
13:47, 10 марта 2026Наука и техника，推荐阅读新收录的资料获取更多信息
。关于这个话题，PDF资料提供了深入分析
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Introduction To Compass And Straightedge Constructions。新收录的资料对此有专业解读