@article{BSMF_1988__116_2_133_0,
     author = {Derdzi\'nski, Andrzej},
     title = {Riemannian metrics with harmonic curvature on 2-sphere bundles over compact surfaces},
     journal = {Bulletin de la Soci\'et\'e Math\'ematique de France},
     pages = {133--156},
     publisher = {Soci\'et\'e math\'ematique de France},
     volume = {116},
     number = {2},
     year = {1988},
     doi = {10.24033/bsmf.2092},
     mrnumber = {90b:53053},
     zbl = {0681.53020},
     language = {en},
     url = {http://www.numdam.org/articles/10.24033/bsmf.2092/}
}