Additional answer-song versions circulate, some of which are clearly more modern.

Several different and sometimes contradictory versions of this experiment have circulated over the years.

A 5:20 version of the song with extra lyrics circulates among collectors.

Various versions of the conspiracy theory circulated, and were later detailed on www.serpo.org.

Both versions of the album circulate on the internet.

She performed them during a summer tour in 2000; since then, live versions have been circulating on the Internet.

A full version was done, however, and circulates on bootlegs.

Both versions of the work circulated widely and eventually Polyhistor was taken for the author's name.

All three versions of the story have been circulating in the area since the 1950s.

An unofficial version of patch 1.2 was circulating in the community for a while.