Introductory references about total least squares

I am an engineering student and I've been recently told about the Total Least Square (TLS) method. I am interested in applying it to topographic measurements and in comparing the results with the ordinary least squares (OLS) solution.

I've been searching a lot but I couldn't find any tutorial about TLS. I am familiar with OLS but not with TLS practical applications. Can anybody recommend me some book, paper or any guide so I can learn to apply this method?
Actually, if you simply google "Total Least Square", there are several introductory tutorials from credible sources right there on the first page.