Yes.
Search the trip code in Google Books, all sorts of stuff pops up.
here is one example:
https://books.google.com/books?id=6mxdDwAAQBAJ&printsec=frontcover&dq=Q+!CbboFOtcZs&hl=en&sa=X&ved=0ahUKEwjC5cqnurfcAhUPSK0KHV5qBdo4ChDoAQgtMAE#v=onepage&q&f=false