Columbia subject headings:
Architecture--Netherlands--Groningen--History--20th century.
Gietema, Ypke--Awards.
Groningen (Netherlands)--Buildings, structures, etc.
Rotterdam-Maaskantprijs.
Harvard subject headings:
Architecture, Modern--20th century--Netherlands--Groningen.
City planning--Netherlands--Groningen.
Gietema, Ypke.
Urban renewal--Netherlands--Groningen.
Princeton subject headings:
Architecture--Netherlands--Groningen--20th century.
Gietema, Ypke--Awards.
Groningen (Netherlands)--Buildings, structures, etc.
Rotterdam-Maaskantprijs.