1. Quasi-harmonic maps between almost symplectic manifolds;P. Baird;Harmonic morphisms, harmonic maps, and related topics, Brest,1997
2. On constructing biharmonic maps and metrics;P. Baird;Ann. Global Anal. Geom,2003
3. Conformal and semi-conformal biharmonic maps;P. Baird;Ann. Global Anal. Geom,2008
4. On the biharmonic curves of the Euclidean and Berger 3-dimensional spheres;A. Balmuş;Sci. Ann. Univ. Agric. Sci. Vet. Med,2004
5. Biharmonic properties and conformal changes;A. Balmuş;An. Ştiinţ. Univ. Al.I. Cuza Iaşi. Mat. (N. S.),2004