Lothar graduated with thesis Datenverwaltungs konzepte für typische Aufgaben aus der Ingenieurgeodäsie (Data management concepts for typical tasks of engineering geodesy) Stuttgart 1987 (Habilitation) .
The following taken from a FIG paper – Korea Conference (source);
Prof Dr-Ing Lothar Gründig graduated Dipl.-Ing in Geodesy 1970, 1975 Dr.-Ing, 1987 habilitation at Stuttgart University. Since 1988 Professor of Geodesy, Adjustment and Engineering Surveying at the Technical University of Berlin.
At Researchgate his name spells Gruendig (source)
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