Das deutsche Referenznetz 1991 : DREF 91

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The German Reference Frame DREF 91

Lindstrot, W. / International Federation of Surveyors (FIG) | British Library Conference Proceedings | 1994

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Vermeulen, B. / Ferreira, M. / Flambard, X. et al. | Tema Archiv | 2003

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Bar, Mahadev / Das, Apurba / Alagirusamy, R. | British Library Online Contents | 2018

Effect of interface on composites made from DREF spun hybrid yarn with low twisted core flax yarn

Bar, Mahadev / Das, Apurba / Alagirusamy, R. | British Library Online Contents | 2018