Teenage boys, Translations into English, Bildungsromans, Fiction, German fiction, Germany, Bildungsroman, Social conditions, Translations into Portuguese, Portuguese fiction, Translations from German, Continental european fiction (fictional works by one author), Young men, German language materials, Fiction, coming of age, Germany, fiction, Youth, Fiction, general, Friendship -- Fiction, Interpersonal relations -- Fiction, Friendship, Interpersonal relations, Germany -- Social conditions -- 1918