Tombs, M. (2015). European Patent EP1989517: Compensating for frequency change in flowmeters. European Patent Office.
Citace podle Chicago (17th ed.)Tombs, M. European Patent EP1989517: Compensating for Frequency Change in Flowmeters. European Patent Office, 2015.
Citace podle MLA (9th ed.)Tombs, M. European Patent EP1989517: Compensating for Frequency Change in Flowmeters. European Patent Office, 2015.
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