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Helmut Hellwig

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Hydrogen spin exchange frequency shifts.

by Helmut Hellwig First published in 1970 — 1 edition

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ion storage technique for application in frequency standards

by Helmut Hellwig First published in 1970 — 1 edition

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Status report on primary frequency standards

by Helmut Hellwig First published in 1973 — 1 edition

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A review of precision oscillators

by Helmut Hellwig First published in 1975 — 1 edition

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Frequency standards and clocks: a tutorial introduction

by Helmut Hellwig First published in 1977 — 1 edition

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OLID: OL2154784A

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