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Issue Date | Title | Author(s) | Type | Access | |
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1 | 1990 | On the random phase approximation based on the thermo field dynamics formalism | Yamamura, Masatoshi ; Providência, João da ; Kuriyama, Atsushi ; Fiolhais, Carlos | article | openAccess |
2 | 1990 | Application of the thermal boson expansion to the Heisenberg antiferromagnet MnF2 | Brajczewska, Marta ; Fiolhais, Carlos ; Providência, João da | article | openAccess |
3 | 1990 | A note on thermal bosons | Providência, João da ; Fiolhais, Carlos | article | openAccess |