"From my point of view I could not see an offside but I was told that it was offside," he added. "If the referee doesn't whistle it is a goal.
"I didn't see any clear chances for goals in our second half but we did have them in the first half and it was the same against Croatia.
"Tactics were blamed that day, this may have been something different."
Austria's goalscorer Ivica Vastic became the oldest goalscorer in European Championship finals history at 38 and he said they must now keep their nerve to beat Germany in the final Group B game on Monday.
"We had many chances tonight without converting them," said Vastic. "But as one saw the most difficult thing to do is to score goals.
"It is now all down to the Germany match and it is vital we have stronger nerves than our opponents."
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