E. Regenstreif

• Acceptance angulaire du quadruplet de retournement
• Contributions to the theory of the symmetric quadrupole triplet
• Focusing and chromatic aberrations in a periodic AG beam transport system
• Phase-space transformations by means of guadrupole multiplets
• Possible and impossible phase-space transformations by means of alternating radient doublets and triplets
• Théorie de la lentille électrostatique à trois électrodes