Well, of the free sources, the Eliteprospects (
http://www.eliteprospects.com/) is pretty good, as far as major
international tournaments (WHC, Olympics, Canada Cups) go. When I did a (international) statistical comparison between Novy, Martinec and Nedomansky some while ago, I found the site quite helpful and trustworthy, even though there were some little obscurities and even little errors; e.g. Martinec's 1976 Canada Cup point total is wrong, even though they have his goals and assists right (3+4≠5)! Apparently 3+4
=7 proved to be too demanding of a calculation in this case
In addition to this, their stats can be often a little incomplete (some singular tournaments missing for some players). So one would need to be careful, and should definitely not trust that 'Career Totals' table that they have for every player!
The 'goironpigs' site (
http://www.goironpigs.com/?cat=40) lists the all-time Top 15-25 scorers by nation ('Europe') in major international tournaments (WHC, Olympics, Canada Cup). Unfortunately, for some reason, they have preferred to list the 'appearances' (i.e. the number of tournaments played) rather than the games played, so it is impossible to find out players' PPG by using this site. Also, I'm not sure how trustworthy it is in the case of the pre-1960s players; e.g. one would expect to see VladimÃr Zábrodský among the all-time top Czechoslovaks, but
he's not there (Zombies?). However, I do believe that the stats for 'modern' players (from the 1960s on) are pretty reliable.
For even closer examination (or source, reference, whatnot), Czech Wikipedia has the box-scores for the World Championship and the Olympic hockey games.
Another message board (International Hockey Forums
http://www.internationalhockey.net/forums/forumdisplay.php?20-IHWC-CANADA-CUP-OLYMPICS&) also has box-scores for e.g. many old World Championship tournaments; even though finding the tournament (=post) you're after can be a pain, I think the stats are somewhat more reliable and partly more complete (shots on goal etc.) than Wikipedia's.