The double minimum problem applied to the ammonia molecules

[1] Dennison, 1932, PHYS REV, V41, P313

[2] Energy levels of a symmetrical double minima problem with applications to the NH3 and ND3 molecules [J]. JOURNAL OF CHEMICAL PHYSICS, 1935, 3 (03) : 136 - 138

[3] MIGEOTTE, 1936, PHYS REV, V50, P418

[4] MORSE, 1931, HELV PHYS ACTA, V4, P337

[5] ROSEN, 1932, PHYS REV, V42, P210

[6] Wright, 1933, PHYS REV, V44, P391

[1] Dennison, 1932, PHYS REV, V41, P313

[2] Energy levels of a symmetrical double minima problem with applications to the NH3 and ND3 molecules [J]. JOURNAL OF CHEMICAL PHYSICS, 1935, 3 (03) : 136 - 138

[3] MIGEOTTE, 1936, PHYS REV, V50, P418

[4] MORSE, 1931, HELV PHYS ACTA, V4, P337

[5] ROSEN, 1932, PHYS REV, V42, P210

[6] Wright, 1933, PHYS REV, V44, P391