@book{on+the+graphics+of+metal+arches+with+special+reference+to+the+relative+strenght+of+two+pivoted+three+pivoted+and+built+in+metal+arches,
    author = {Atcherley, Lewis Winter i Pearson, Karl},
    title = {On the graphics of metal arches, with special reference to the relative strenght of two-pivoted, three-pivoted and built-in metal arches},
    address = {London},
    publisher = {Published by Dulau and Co.},
    date = {1905}
}