Complex sentence: His views on quantum mechanics converge with ideas developed by Julian Schwinger and Asher Peres, according to whom quantum mechanics is a "symbolism of atomic measurements", rather than a description of atomic objects.
Split into simpler sentences: His views on quantum mechanics converge with ideas developed by Julian Schwinger J. Schwinger, Quantum Mechanics. Concepts and Methods, Kluwer, 1995, according to whom quantum mechanics is a "symbolism of atomic measurements", rather than a description of atomic objects.