1. Horizontal block adjustment;Bervoets;The Australian Surveyor,1971
2. Schut , G. H. 1966a An introduction to analytical strip triangulation with a Fortran program National Research Council of Canada technical publication NRC 9396 84
3. Schut , G. H. 1966b A Fortran program for the adjustment of strips and of blocks by polynomial transformations National Research Council of Canada technical publication NRC 9265 33