Warning (figure 1 in paper): P1 and P2 points have to be permuted to correctly use the datasets proposed on this webpage. The figure located on this webpage is the correct one (P1=A, P2=B).

Warning (DMS value for latitude of point P0): There is a mistake in the paper: the correct DMS value for the latitude of point P0 is 46°13′56.21′′ N.