Internationally, FAI is the governing body for aviation competitions. The FAI pattern aerobatic class is F3A and the rules and definitions can be found at.
http://www.fai.org/aeromodelling/documents/sc4

The F3A file (a .pdf file in a .zip file) contains, among other things, definitions for the manouvers.
ftp://www.fai.org/sporting_code/sc4/sc4.f3a.06.v2.zip

For mere mortals, there are easier sequences at national levels.