Hartmut F. W. Höft  -  Professor emeritus
Eastern Michigan University
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>>      Art Exhibit at JMM 2013 :: Conference - San Diego
>>     Art Exhibit at JMM 2014 :: Conference - Baltimore
>>       Designs with Pairs of Orthogonal Ellipses - Gallery 1
>>       Designs with Pairs of Orthogonal Ellipses - Gallery 2
>>       Bridges Towson 2012
>>       Circles & Ellipses
>>       Bridges Enschede 2013