Finish-occupied Soviet territory?

[Rich Rostrom]

There is a minor, obscure, but potentially
interesting story I would like to find out
more about.

From 1941 to 1944, Finland occupied a

slice of Soviet Karelia. Most of this
area was empty wilderness, but some of
it was populated, which means that
Finland had a non-trivial number of
Soviet civilians under its control.

Part of this area was former Finnish
territory, including the city of Viipuri
or Viborg. Viipuri had been one of the
largest cities in Finland with over 70,000
residents.

When the area was ceded to the USSR in
1940, what happened to the Finnish
residents? One suspects many of them
fled to other parts of Finland, and
that Russians were brought in to occupy
the vacated homes.

When the area was re-occupied by
Finland in 1941, what happened in
Viipuri? And what happened when the
area was taken for good by the USSR
in 1944?

Another part of the campaign zone was
the area north and east of Lake Ladogo.
In this area, Finnish forces advanced
well beyond the 1939 border, and
occupied the Soviet city of Petrozavodsk,
which had around 70,000 people. What
happened in Petrozavodsk when it wa
occupied by Finland? How did Finland
administer this area during the occupation?
And what happened when the USSR retook it?

Can anyone give me pointers to sources
(preferably in English) that discuss this
subject? I would struggle through non-English
sources if the text is on-line for Google
translation.

[Don Phillipson]

From 1941 to 1944, Finland occupied a

slice of Soviet Karelia. . . .
When the area was re-occupied by
Finland in 1941, what happened in
Viipuri? And what happened when the
area was taken for good by the USSR
in 1944?

I read a year ago a biography "Mannerheim,
President, Soldier, Spy" by Jonathan Clements (2009)
and ISTR these questions were answered there.
There was obviously continuing dispute about these
border regions ever since Finnish independence.