In the webpage's using materiality,messages,photo's and etc. from books:
"With Dju Across the Atlantic" ; "With Dju Across the Pacific" ; "With Yana Around the World" ; "Impossible Road", of Julia and Doncho Papazov ,
"Whit yacht Tivia around the Еurope" of S.Idakiev,
"Voluntary survivor of a shipwreck" of Dr. Alain Bombare, and passages from the Bulgarian Dayli's