(?:`)?(?:this`is`apreambl\.`tex,`version`1\.10e,`written`by`hans\-`hermann`bode`\(hhbode@dosuni1\.`bitnet\),`for`the`bibtex`adaptable`family,`version`1\.10\.`see`the`file`apreambl\.`doc`for`a`detailed`documentation\.)?(?:`)?this`program`is`distributed`without`any`warranty,`express`or`implied\.`copyright`\(c\)`1991,`1992`hans\-`hermann`bode`permission`is`granted`to`make`and`distribute`verbatim`copies`of`this`document`provided`that`the`copyright`notice`and`this`permission`notice`are`preserved`on`all`copies\.`permission`is`granted`to`copy`and`distribute`modified`versions`of`this`document`under`the`conditions`for`verbatim`copying,`provided`that`the`entire`resulting`derived`work`is`distributed`under`the`terms`of`a`permission`notice`identical`to`this`one\.