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Since I cannot add a comment, I would like to let you know that another family of drawings there other known classes of drawings of Kn$K_n$ with Z(n)$Z(n)$ crossings was found.
Since I cannot add a comment, I would like to let you know that another family of drawings there other known classes of drawings of Kn with Z(n) crossings was found.
Since I cannot add a comment, I would like to let you know that another family of drawings there other known classes of drawings of $K_n$ with $Z(n)$ crossings was found.
Since I cannot add a comment, I would like to let you know that another family of drawings there other known classes of drawings of Kn with Z(n) crossings was found.