See Kümmel 146–48. Please see the symbol key for an explanation of the diagrams in this post series.
In this post:[caption id=“attachment_2014” align=“alignleft” width=“80” caption=“Werner Kümmel”] 
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See Kümmel 146–48. Please see the symbol key for an explanation of the diagrams in this post series.
In this post:[caption id=“attachment_2014” align=“alignleft” width=“80” caption=“Werner Kümmel”] [/caption]