References
- RONCHI , L. , BARBARINO , S. , GRASSO , F. , GUERRIERA , G. , MUSUMECI , F. and SCORDINO , A. 1982 . Nuovo Cim. D , 1 : 578 – 585 .
- ABRAMOWITZ , M. and STEGUN , I. 1970 . Handbook of Mathematical Functions , Washington : National Bureau of Standards .
- SOMMERFELD , A. 1966 . Partial Differential Equations in Physics , New York : Academic Press .
- TEMPERLEY , H. N. V. , ROWLINSON , J. S. and RUSHBROOKE , G. S. , eds. 1968 . Physics of Simple Liquids , 389 Amsterdam : North-Holland . et seq
- WASHCROFT , N. and MERMIN , N. D. 1976 . Solid State Physics , 76 Philadelphia : Saunders College . et seq
- RONCHI , L. , BARBARINO , S. , GRASSO , F. , GUERRIERA , G. , MUSUMECI , F. and SCORDINO , A. 1982 . Lett . nuovo Cim , 35 : 353 – 357 .