Describir: Report of the seminar on... Copenhagen Denmark, 13 August-1 September 1967

  ______     ___      _____    _    _    _    _     ______    _  __    _____   
 /_   _//   / _ \\   |__  //  | || | || | || | ||  /_   _//  | |/ //  |  ___|| 
   | ||    / //\ \\    / //   | || | || | || | ||   -| ||-   | ' //   | ||__   
  _| ||   |  ___  ||  / //__  | \\_/ || | \\_/ ||   _| ||_   | . \\   | ||__   
 /__//    |_||  |_|| /_____||  \____//   \____//   /_____//  |_|\_\\  |_____|| 
 `--`     `-`   `-`  `-----`    `---`     `---`    `-----`   `-` --`  `-----`