\item {\em\color{blue} bond order} Potential
im Gegensatz zu {\em explicit angular}\\
\[
- \pot = \pot_R(r_{ij}) + {\color{blue} b_{ijk}} \pot_A(r_ij)
+ \pot = \pot_R(r_{ij}) + {\color{blue} b_{ijk}} \pot_A(r_{ij})
\]
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