. . . . "Field performance of timber bridges. 12, Christian Hollow stress-laminated box-beam bridge"@en . . . . "Christian Hollow stress-laminated box-beam bridge"@en . . . . "Field performance of timber bridges 12 Christian Hollow stress-laminated box-beam bridge /James P. Wacker;Staphen C. Catherman;Richard G. Winnett" . . . . . . . . . . . . . "Field performance of timber bridges 12, Christian Hollow stress-laminated box-beam bridge"@en . . . . .