What has the author H H Siegumfeldt written?

H. Wieland has written: '\\'

H. Salvador has written: '\\'

H. Marsman has written: '\\'

Will H. Moore has written: '\\'

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H. Blyth has written: 'Skittles'

I. H. Naumovych has written: 'Syroty'

A. S. H. has written: 'Belinda'

H. Coppen has written: 'Wallsheets'

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H. Brandon has written: 'In the red'

H. Jabeen has written: 'Zaib'

H. Harding has written: 'Dorset'

H. Cleary has written: 'Fifteen'

A. H. Sanders has written: 'Electroplating'

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H. Tanner has written: 'The Ferrari'

A. H. Bingley has written: 'Sikhs'

A. H. Sully has written: 'Chromium'

H H. Jaffe has written: 'The importance in antibonding orbitals'

H. H. Fortune has written: 'Many cultures together'

H H E. Leipholz has written: 'Stability'

H H. Hausner has written: 'Perspectives in powder metallurgy'

H. H. Harman has written: 'Modern factor analysis'

H H. tiltman has written: 'james Ramsey Macdonald'

H. Brackert has written: 'Funk-Kolleg'

H. Prater has written: 'The knights of the tempest'

H. A. Wage has written: 'Dagend dichterschap'

Charles H. Oliver has written: '\\'

H. tidball has written: 'contemporary tapestry'

H. Mataadar has written: 'Kutumb niyojan'

H. Moissan has written: 'The electric furnace'

A. H. Miller has written: 'The figure of the earth'