Some aspects of the determination and elimination of inconsistent phase relationships / Jan Dirk SchagenAutomatic derivation of joint probability distributions of normalized structure factors and optimal symbolic phase determination / René PescharThe phase problem in x-ray structure determination : algebraic and statistical methods / door Enno Anton KlopSome aspects of real space methods for x-ray structure determination / Maarten KreverKarle-Hauptman matrices and the phase problem in single-crystal X-ray diffraction / René de GelderThe sparse electron-density principle in crystal-structure determination / Paul VerwerContributions to the direct phase determination in protein crystallography / Christos Efstratios KyriakidisEigenvalues of Karle-Hauptman matrices : theory and practice / Jacob Leendert van der PlasEmpirical estimates of phasesums of invariants and their application in direct methods / Gerrit Jan OlthofAspects of theory and practice of sine invariants in direct methods / door Willibrordus Maria Gertrud Franciscus PontenagelThe use of DIRDIF and its application to translation functions in DIRDIF Fourier space / door Hendrikus Maria DoesburgDIRDIF applications and reciprocal space translation functions / Hilbert Jan Bruins Slot ; [ill. by the author]