1. Alsina, C. (1984), On some metrics induced by copulas. In W. Walter (ed), General Inequalities 4, Birkhäuser Verlag, Basel-Boston-Stuttgart, p. 397.
2. Alsina, C. (1987), A problem concerning some metrics. In W. Walter (ed), General Inequalities 5, Birkäuser Verlag, Basel-Boston-Stuttgart, p. 463.
3. Alsina, C. and Schweizer, B. (1988), Mixtures are not derivable, Found. Phys. Lett. 1, 171–174.
4. Alsina, C., Nelsen, R.B. and Schweizer, B. (1993), On the characterization of a class of binary operations on distribution functions, Statist. Probab. Letters
17, 85–89.
5. Genest, C., Quesada, J.J., Rodriguez, J.A. and Sempi, C. (1998), A characterization of quasicopulas, to appear.