Google is your friend.
I just did a search. This is a quote from the first page I found:
Two days ago we toured the haunting but strangely peaceful Jewish cemetery in Warsaw. Among the thousands of gravestones, many of which were broken, tipped over and neglected, we happened upon the tomb of the “Gitler” family. (Due to the phonetic characteristics of Russian, Hitler is referred to as “Gitler” in that language.)
Now that's just an internet source and you know how to treat the validity of said, but maybe it's a starting point for you. :)