ČUNDERLÍK, R., R. TENZER, A. ABDALLA, and K. MIKULA. “The Quasigeoid Modelling in New Zealand Using the Boundary Element Method”. Contributions to Geophysics and Geodesy, Vol. 40, no. 4, Dec. 2010, pp. 283-97, doi:10.2478/v10126-010-0011-7.