Trees and Hierarchical Structures :  Proceedings of a Conference held at Bielefeld, FRG, Oct. 5-9th, 1987 / 
eds. Andreas Dress, Arndt von Haeseler. 
 - Berlin :  Springer-Verlag,  1990. 
 - 137 s. :  il. ;  24 cm. 
 - (Lecture Notes in Biomathematics) .
<br/><br/>bibliogr. 
<br/><br/><label>ISBN: </label>3540524533 
<br/><br/><label>Uniwersalna Klasyfikacja Dziesiętna: </label> 007:061.3