No, there is not a period after et, rather, the period is after al.Et al. is Latin for et alli, meaning "and other people."
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This Et Al ended in 2008.
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This Et Al was created in 2002.
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Et ux et al means "the wife and all of the others"
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Definitely!
"et al." is an abbreviation of "et alli". "et" is a complete
word hence no full-stop is required BUT "al." is an abbreviation of
"alli" hence a full stop is required.