@article{EUG_1989_21_a2,
     author = {Florence Gouli-Andreou},
     title = {On a {Riemannian} {Manifold} {M} with {Structures} {Defined} by {Nilpotent} {Operators}},
     journal = {E\ensuremath{\upsilon}\ensuremath{\kappa}\ensuremath{\lambda}\ensuremath{\varepsilon}\ensuremath{\acute\iota}\ensuremath{\delta}\ensuremath{\eta}\ensuremath{\varsigma} \ensuremath{\Gamma}},
     pages = {21--30},
     year = {1989},
     volume = {21},
     language = {gr},
     url = {http://geodesic.mathdoc.fr/item/EUG_1989_21_a2/}
}