UFO Article (Blog):

“DATA-NET & Others: 
1970 was a very bad UFO year ... or WAS it??”

by Dr. Michael D. Swords, 26 October 2011 
(The Big Study)

In this article, Michael D. Swords reports on the Lake Anten, Sweden CE2 case (that also involved physical traces) and several of the best documented worldwide UFO incidents that occurred in 1970:

http://thebiggeststudy.blogspot.no/2011/10/data-net-others-1970-was-very-bad-ufo.html

The Lake Anten UFO incident occurred on the night of 29/30 August 1970.

Lake Anten is located 42 kilometres (26 miles) north-east of Gothenburg.

Lake Anten, Sweden (google.com/mw-panoramio)
(google.com/panoramio.com photo)