1. Bove, G. (1989). New methods of representation of proximity data. Doctoral thesis, Dipartimento di Statistica, Probabilità e Statistiche Applicate, Universita’La Sapienza, Roma (in Italian).
2. Bove, G., & Critchley, F. (1989). On the representation of asymmetricproximities. Atti delle Giornate di studio del Gruppo Italiano aderenti IFCS, Erice 24–25 Ottobre 1988. Società Italiana di Statistica, Ila Palma Ed., Palermo (in Italian).
3. Bove, G., & Critchley, F. (1993). Metric multidimensional scaling for asymmetric proximities when the asymmetry is one-dimensional. In R. Steyer et al. (Eds.), Psychometric methodology (pp. 55–60). Stuttgart: Gustav Fischer Verlag.
4. Brusco, M. J., & Stahl, S. (2005). Bicriterion seriation methods for skew-symmetric matrices. The British Journal of Mathematical and Statistical Psychology, 58, 333–343.
5. Constantine, A. G., & Gower, J. C. (1978). Graphical representation of asymmetric matrices. Applied Statistics, 27, 297–304.