REMOVE

1. Atlas Map
2. Population
3. Transportation

WHAT

1. Commerce; Economics (2)
2. Data Visualization (2)
3. Statistical (2)

WHERE

1. Budapest (Hungary) (1)
2. Hungary (1)
3. Switzerland (1)

WHO

1. Budapest (Hungary). Fövár … (1)
2. Budapest Székesfőváros St … (1)
3. Eidgenössische Landestopo … (1)
4. Illyefalvi, Lajos I., 188 … (1)
5. Imhof, Eduard, 1895-1986 (1)

WHEN

1. 1930 (1)
2. 1940 (1)
3. 1967 (1)
4. 1978 (1)