Perhaps you should try some spelling variations:
recognizing gehring » recognizing learning, recognizing growing, recognizing seizing
springer theses » springer thomas, springer theory, springer kremser
gehring ph.d » guiding ph.d, gehring fred, gehring und

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: springer theses, recognizing gehring ph.d. research*.