Kevin L. Polk

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cover image of The Essential Guide to the ACT Matrix

The Essential Guide to the...

Kevin L. Polk Author
Benjamin Schoendorff Author
(2016)

cover image of The ACT Matrix

The ACT Matrix

Kevin L. Polk Editor
Benjamin Schoendorff Editor
(2014)

cover image of Praxishandbuch ACT-Matrix

Praxishandbuch ACT-Matrix

Kevin L. Polk Author
Benjamin Schoendorff Author
(2019)