Keyword Subject      Subject phrase      Personal      Personal phrase Title      Title phrase UDC BBC Author      Author phrase      Corporate name      Corporate name phrase      Conference name      Conference name phrase Publisher Publisher location Standard number      ISBN

and or not Keyword Subject      Subject phrase      Personal      Personal phrase Title      Title phrase UDC BBC Author      Author phrase      Corporate name      Corporate name phrase      Conference name      Conference name phrase Publisher Publisher location Standard number      ISBN [+] [-]

and or not Keyword Subject      Subject phrase      Personal      Personal phrase Title      Title phrase UDC BBC Author      Author phrase      Corporate name      Corporate name phrase      Conference name      Conference name phrase Publisher Publisher location Standard number      ISBN [+] [-]