One function complexly realizable by the Cascade method
Matematičeskie zametki, Tome 16 (1974) no. 5, pp. 783-788.

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An example is constructed of a function of the algebra of logic with n variables which is realized, by the method of cascades, with a complexity no less than $2^{\sqrt n}-2$. In other words, a circuit is constructed for this function with $4n^{\log_32}$ contacts.
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     author = {I. Denev},
     title = {One function complexly realizable by the {Cascade} method},
     journal = {Matemati\v{c}eskie zametki},
     pages = {783--788},
     publisher = {mathdoc},
     volume = {16},
     number = {5},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1974_16_5_a12/}
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I. Denev. One function complexly realizable by the Cascade method. Matematičeskie zametki, Tome 16 (1974) no. 5, pp. 783-788. http://geodesic.mathdoc.fr/item/MZM_1974_16_5_a12/