Interrelations between the Length, the Structure and the Cardinality of a Chain. - Gerhard Herden; Andreas Pallack (Order, 2001)

Consistency in ordinal data analysis I. - Gerhard Herden; Andreas Pallack (Math. Soc. Sci., 2002)

On the continuous analogue of the Szpilrajn Theorem I. - Gerhard Herden; Andreas Pallack (Math. Soc. Sci., 2002)