wiley数据库的杂志，color figures and page charges有关说明，其中提到Colour figures can be reproduced. However, we ask authors to
contribute towards the extra costs incurred for the reproduction
of colour with 495 e per figure.
如果文章中有彩图的话，是必须要收费么，还是说电子版免费，印刷版收费呢？谢谢指教！
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