Napačna izbira? Nič za to! Izdelke lahko vrnete do 30 dni
Z darilnim bonom ne morete zgrešiti. Obdarovanec lahko v zameno za darilni bon izbere karkoli iz naše ponudbe.
Do 30 dni za vračilo
Energy of knots is a theory that was introduced to create a canonical configuration of a knot - a beautiful knot which represents its knot type. This book introduces several kinds of energies, and studies the problem of whether or not there is a canonical