Poem "De rivier was blinkend en wijd, het water blauw als staal" ("The river was shing and wide, the water blue as steel"), published in the autobiography "In den vreemde - Kronieken" ("In foreign parts - Chronicles", 2024, Frida Vogels), chapter 'Herbert' - May 20th, 1976, Bologna (about the Maas near Capelle aan den IJssel during Frida's visit to Herbert Cohen [1931-2016] on Sunday, May 16th, 1976)