Eddy Bosnar's handball led to the first spot-kick, which was duly converted by Solzarno for his fifth of the season.
Kaluderovic came on as Solzarno's replacement in the 77th minute and netted a penalty of his own in stoppage-time after Thomas Broich had been fouled.
Both sides still retain hope of achieving a top-six finish to extend their respective campaigns.
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