... and his footprints 

the famous Nitsche trick was first published in

 

 

a (nearly, w/o early 1950th papers) complete reference list is given in:

 


 A "quasi-optimal" shift theorem for linear parabolic equations with appropriately defined norms in a Hilbert scale framework  is proven in

 


Stefan (non-linear parabolic) problem related papers are:

 

 

Some additional  papers:




 

 

  

Joachim A. Nitsche (1926-1996)