Citation Hunt

The Wikipedia snippet below is not backed by a reliable source. Can you find one?

Click I got this! to go to Wikipedia and fix the snippet, or Next! to see another one. Good luck!

In page Sadako Sasaki:

"

Her story has become familiar to many schoolchildren around the world through the novels The Day of the Bomb (1961, in German, Sadako will leben) by the Austrian writer Karl Bruckner. Sadako is also briefly mentioned in Children of the Ashes, Robert Jungk's historical account of the lives of Hiroshima victims and survivors and about Japan World War II.[citation needed]