(Q26941484)
Statements
1 reference
20 September 2016
1792
1 reference
20 September 2016
Dr. Gerhardus Nicolaas Heerkens, (Dutch)
1 reference
1 reference
20 September 2016
1 reference
1 reference
1 reference
1 reference
20 September 2016
0000.1272
1 reference
20 September 2016