some talks:

• a bijective proof of the hook-length formula for shifted standard tableaux
• a method for proving polynomial enumeration formulas
• polynomiale abzählformeln
• die geschichte der alternierenden vorzeichenmatrix vermutung
• the number of monotone triangles with prescribed bottom row
• a new proof of the refined alternating sign matrix theorem
• die mathematik des käse-kästchen-spiels (schülerInnentag)
• refined enumerations of alternating sign matrices
• sequences of labeled trees related to gelfand-tsetlin patterns
• an alternative approach to alternating sign matrices