The effect of divacancies on positron annihilation in Cu

An efficient method for finding the minimum of a function of several variables without calculating derivatives

1964 • 4,391 citations

A Method for Minimizing a Sum of Squares of Non-Linear Functions Without Calculating Derivatives

1965 • 753 citations

Vacancy-Formation Energies in Metals from Positron Annihilation

1972 • 202 citations

Vacancy-formation energies in copper and silver from positron annihilation

1973 • 50 citations

The effects of vacancies on positron annihilation in cadmium

1971 • 38 citations

The measurement of the formation energy of a vacancy in Cu by positron annihilation

1973 • 22 citations

The temperature dependence of the trapping rate of positrons by vacancies in metals

1972 • 21 citations