@article{PMF_1902_13_1_a6,
     author = {Merecki, R.},
     title = {Obserwacye mikrometryczne mg{\l}awic. {Cz\k{e}\'s\'c} {I}},
     journal = {Prace Matematyczno-Fizyczne},
     pages = {285--339},
     publisher = {mathdoc},
     volume = {13},
     number = {1},
     year = {1902},
     language = {pl},
     url = {http://geodesic.mathdoc.fr/item/PMF_1902_13_1_a6/}
}