The story was posted on her FB page by Julia Egger:

I translated one conversation today because I happened to be there.
Location of Vienna.
The interlocutors:
Vladimir Raspolychin, a veteran who liberated Vienna in 1925, now lives in Vienna.
The Austrian, 1936, lives in Vienna.
The situation: an Austrian approaches the veteran and tries to speak Russian, the veteran does not understand a word, but tries to disassemble. I just stood by and helped with the translation.
The dialogue:
A: I am a Jew.
V. V. RI am Russian
A: I have to tell you something. My parents and grandparents died in Treblinka. I went to a children’s camp in Austria. I want to tell you... pause. I have to tell you... pause. I have to tell you, I want to tell you, I have to thank you. I can only thank you because of you. If the Soviet troops had arrived a few days later, I would not have stood here now and picked up the words to say to you. I know what I have to say! Thanks for my life.

The Austrian, who was almost 80, stood in front of our veteran, who was almost 90, as if he had hurt a boy. They didn’t cry, they didn’t hold hands, they didn’t hug each other. They just remained silent for a long time. One was 20, the other 9. As in April 1945.