钐、铕、钆和铽同位素的发现
Discovery of Samarium, Europium, Gadolinium, and Terbium Isotopes
摘要：
目前，已经观察到34种钐、34种铕、31种钆和31种铽同位素，这里讨论这些同位素的发现。对于每个同位素的第一个参考出版物，包括生产和鉴定方法，简要介绍。
英文摘要：
Currently, thirty-four samarium, thirty-four europium, thirty-one gadolinium, and thirty-one terbium isotopes have been observed and the discovery of these isotopes is discussed here. For each isotope a brief synopsis of the first refereed publication, including the production and identification method, is presented.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
