Franco y los hippy

¿Os recordaís de mi pregunta sobre las acciones de Franco con respecto a los Hippy de Ibiza?
He buscado muchisimo por Internet, pero lo unico que he encontrado es esto, es en inglés pero se entiende bastante:
...It all began in the 1960's when 'the hippies' arrived on the island. Still a prominent feature today, surviving hippies in Ibiza cash in with their markets and thrill tourists by banging their bongos on beaches at sunset. Originally these wanderers with long hair hailed from the U.S and brought with them musical styles that hadn't yet reached Spain. Francisco Franco was in power until 1975 and attempted to prohibit the importation of foreign bands. Nonetheless, Ibiza blossomed as an innovative home for music and the word began to spread. Trendsetters and music buffs headed to Ibiza to host enormous parties on farms in the countryside, which gave rise to a huge amount of musical productivity and freedom...