@article{TMF_1995_104_1_a4,
     author = {E. L\'opez},
     title = {On the algebraic structure of the holomorphic anomaly for ${\hat c}=3$ topological strings},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {43--54},
     publisher = {mathdoc},
     volume = {104},
     number = {1},
     year = {1995},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/TMF_1995_104_1_a4/}
}