@article{10_1023_A_1023269922178,
     author = {Pr\'ager, Milan},
     title = {Eigenvalues and eigenfunctions of the {Laplace} operator on an equilateral triangle},
     journal = {Applications of Mathematics},
     pages = {311--320},
     publisher = {mathdoc},
     volume = {43},
     number = {4},
     year = {1998},
     doi = {10.1023/A:1023269922178},
     mrnumber = {1627985},
     zbl = {0940.35059},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.1023/A:1023269922178/}
}