@article{TMF_2008_157_2_a7,
     author = {A. E. Myasnikova and E. N. Myasnikov and Z. P. Mastropas},
     title = {Singularities of the~thermodynamic potential under second-order
},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {273--285},
     publisher = {mathdoc},
     volume = {157},
     number = {2},
     year = {2008},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_2008_157_2_a7/}
}