EXCITATION SPECTRUM OF A SYSTEM OF INTERACTING BOSONS

[21] NEUTRON-SCATTERING STUDY OF MOMENTUM DISTRIBUTION OF HE-4 [J]. PHYSICAL REVIEW LETTERS, 1974, 32 (21) : 1167 - 1170

[22] PITAEVSKII LP, 1961, SOV PHYS JETP-USSR, V13, P451

[23] DYNAMICS OF CONTINUOUS PHASE-TRANSITIONS [J]. ANNALS OF PHYSICS, 1974, 82 (01) : 1 - 53

[24] NEUTRON INELASTIC SCATTERING FROM LIQUID HELIUM AT SMALL MOMENTUM TRANSFERS [J]. PHYSICAL REVIEW LETTERS, 1965, 14 (10) : 355 - &

[25] STRUCTURE AND EXCITATIONS OF LIQUID-HELIUM [J]. REPORTS ON PROGRESS IN PHYSICS, 1973, 36 (09) : 1135 - 1231

[21] NEUTRON-SCATTERING STUDY OF MOMENTUM DISTRIBUTION OF HE-4 [J]. PHYSICAL REVIEW LETTERS, 1974, 32 (21) : 1167 - 1170

[22] PITAEVSKII LP, 1961, SOV PHYS JETP-USSR, V13, P451

[23] DYNAMICS OF CONTINUOUS PHASE-TRANSITIONS [J]. ANNALS OF PHYSICS, 1974, 82 (01) : 1 - 53

[24] NEUTRON INELASTIC SCATTERING FROM LIQUID HELIUM AT SMALL MOMENTUM TRANSFERS [J]. PHYSICAL REVIEW LETTERS, 1965, 14 (10) : 355 - &

[25] STRUCTURE AND EXCITATIONS OF LIQUID-HELIUM [J]. REPORTS ON PROGRESS IN PHYSICS, 1973, 36 (09) : 1135 - 1231