Journal of geodesy. 1937;54(1):35-36. doi: 10.1007/bf02539776 Q14.02025
Latest results of photoelectric observations of the time service at Pulkovo
DOI: 10.1007/bf02539776
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Journal of geodesy. 1937;54(1):35-36. doi: 10.1007/bf02539776 Q14.02025
DOI: 10.1007/bf02539776
摘要 查看摘要