Then look harder.
1990 Election Results for Bosnia. Count 'em - 7 presidents, and Abdic ran as a member of Izetbegovic's party.
As for who got the most votes, it's irrelevant - the voters were electing members of the collective presidency only. Once elected, it was up to those members to apportion power however they saw fit, and that's exactly what they did.
However, if you feel compelled to pursue the matter, citing the relevant Bosnian electoral law which was broken will settle the issue, and I'm sure that all of your sources can back you up in this matter, what with this method being incontrovertible and all.
Failing that, any references to objections raised at the time by either the SDS or HDZ would bolster your case - here's an article from Oct 11, 1993 from Vreme, yet there's no mention of any laws broken by Izetbegovic's taking the position of head of the collective presidency - I guess they're in on the conspiracy too?
Have fun.
For all your rhetoric, this is the portion of your statement which you've yet to back up.
I never asserted that "Izetbegovic broke election laws", but rather that Abdic stepped aside for reasons that have never been clear (although there were a lot allegations thrown around), even though Abdic got far more votes than Izetbegovic -- which by the way, your link nicely proves.
Even by your own numbers, Abdic won the most votes and Izetbegovic won the second most votes. When Abdic stepped aside, Izetbegovic became president. Based on your assertion, that would have been "just coincidence". But none of the other sources seem to infer that.
In any case, this thread is about Handke -- not Abdic or Izetbegovic, so feel free to answer another time Hoppie.