- Author: Helmut K. Schmidt Author Record # 211237
- Legal Name: Schmidt, Helmut Karl
- Language: German
- Used These Alternate Names: H. Ch. Leroy, Ive Steen, I. V. Steen
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Novels
- Das Lied der Norne (2019) [only as by I. V. Steen]
- Kim Roy : Der Herr der Zukunft : Band 2 (2013)
- Kim Roy : Der Herr der Zukunft : Band 3 (2013)
- Der Mann aus dem All (2015)
-
Kim Roy : Der Herr der Zukunft : Band 1 (2013)
with
Paul Alfred Müller?Paul Alfred Mueller[only as by Freder van Holk and Helmut K. Schmidt]
- 300 000 Tonnen Arsenik (1949) [only as by Ive Steen]
- Blutsauger im Dunkel (1949) [only as by Ive Steen]
- Das tropfende Gold (1949) [only as by Ive Steen]
- Der rote Baldachin (1949) [only as by Ive Steen]
- Der strahlende Tod (1949) [only as by Ive Steen]
- Die glühenden Wölfe (1949) [only as by Ive Steen]
- Die schwarzen Spinnen (1949) [only as by Ive Steen]
- Die trockene Hölle (1949) [only as by Ive Steen]
- Die tödliche Beute (1949) [only as by Ive Steen]
- Mars funkt (1949) [only as by Ive Steen]
- Thai der Bandit (1949) [only as by Ive Steen]
- Der Mann aus Tibet (1949) [only as by Ive Steen]
- Der Mann aus dem All (1956) [only as by I. V. Steen]
- Spur durch vier Dimensionen (1958) [only as by I. V. Steen]
- Sternengeschenk im Eis (1958) [only as by H. Ch. Leroy]
- Moores neue Sonne (1962) [only as by uncredited]
- Rechenzentrum Omnivac (1962) [only as by uncredited]
- Notschrei aus der Zukunft (1962) [only as by uncredited]
- Fluch der Intelligenz (1963) [only as by uncredited]
- Höllenbrut (2006)
- 300 000 Tonnen Arsenik (1949) [only as by Ive Steen]
- Blutsauger im Dunkel (1949) [only as by Ive Steen]
- Das tropfende Gold (1949) [only as by Ive Steen]
- Der rote Baldachin (1949) [only as by Ive Steen]
- Der strahlende Tod (1949) [only as by Ive Steen]
- Die glühenden Wölfe (1949) [only as by Ive Steen]
- Die schwarzen Spinnen (1949) [only as by Ive Steen]
- Die trockene Hölle (1949) [only as by Ive Steen]
- Die tödliche Beute (1949) [only as by Ive Steen]
- Mars funkt (1949) [only as by Ive Steen]
- Thai der Bandit (1949) [only as by Ive Steen]
- Der Mann aus Tibet (1949) [only as by Ive Steen]
- Der kupferne Mond (1953)
- Der Mann aus dem All (1956) [also as by I. V. Steen]
- Der Atomtod im Cadillac (1956)
- Rückkehr gestern (1956)
- Ich war im Mond (1957)
- Spur durch vier Dimensionen (1958) [also as by I. V. Steen]
- Sternengeschenk im Eis (1958) [also as by H. Ch. Leroy]
- Moores neue Sonne (1962) [only as by uncredited]
- Rechenzentrum Omnivac (1962) [only as by uncredited]
- Notschrei aus der Zukunft (1962) [only as by uncredited]
- Fluch der Intelligenz (1963) [only as by uncredited]
- Höllenbrut (2006)
- Der Feind aus Shangri-La (2013)
- Der zehnte Unbekannte (2013)
- Die Wächter von Tiahuanaco (2013)
- Geheimbasis Nine U. N. K. (2013)
- Zeitkapsel Marcahuasi (2013)