Now published: article by Frercks Hartwig in „Tennistraining Junior 4/2016″: Coaches guide for a varied and versatile training. „Here is the coach supporter, companions and facilitator of learning processes“.
Now published: article by Frercks Hartwig in „Tennistraining Junior 4/2016″: Coaches guide for a varied and versatile training. „Here is the coach supporter, companions and facilitator of learning processes“.