| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Conversion from Oil to Coal Firing, Will It Pay? | 978-92-9029-134-3 (92-9029-134-6) | 1986 | |
| Power Generation from Coal, What Does It Cost? | 978-92-9029-135-0 (92-9029-135-4) | 1986 | R.W. Gregory |
Leha Vorobjeva · Léon Verbeek · Lotte Verbeek · Ludwig Verbeek · Willem Jan Louis Verbeek