REMOVE

1. Physical
2. Croatia
3. Slovenia

WHAT

1. Atlas Map (2)
2. World Atlas (2)

WHERE

1. Belgrade (Serbia) (1)
2. Italy (1)
3. Montenegro (1)

WHO

1. Instituto Geografico di A … (1)
2. Instituto Geographico di … (1)
3. USSR (1)
4. USSR (Union of Soviet Soc … (1)

WHEN

1. 1952 (1)
2. 1967 (1)