Help by Example

 In the table below are some examples of search expression.
 In the examples, we assume no case matching.

to search type
the word morphology - morphology
(or simply) morphology
the words mathematical and morphology - mathematical morphology
(or simply in most cases) mathematical morphology
the name Heijmans in the field Author author Heijmans
(or simply) au heijmans
(or simply in most cases) heijmans
Heijmans in Author and operators in Title author Heijmans and title operators
(or simply) au heijmans & tit operators
(or simply in most cases) heijmans operators
Heijmans in Author and 1993 in Year author Heijmans and year 1993
(or simply) au heijmans & year, 1993
(or simply in most cases) heijmans 1993
the full texts written by Heijmans au heijmans & repository *
Heijmans in Author and 1993 or 1995 in Year author Heijmans and {year 1993 or year 1995}
(or simply) au heijmans & {year, 1993 | year, 1995}
Heijmans in Author and from 1981 to 1988 in Year au heijmans & year, 1981|1988
Heijmans in Author and the word morphology au heijmans & - morphology
the words beginning with filter and excluding the word linear - filter* and not - linear
(or simply) - filter* & ! - linear
the exact expression linear filter in Keywords k _linear_filter
the Masters Thesis in 1999 thes m* & year, 1999
the PhD Thesis in 1999 thes p* & year, 1999
the Masters and PhD Thesis in 1999 ref thesis & year, 1999
the Masters and PhD Thesis in 1999 with full text ref thesis & year, 1999 & ind 0
the references entered by Marciana on February 16th, 2004 usern marciana & metadatal 2004:02.16*
the references entered by Marciana from February 16th, 2004 usern marciana & metadatal 2004:02.16|*
the references entered by Marciana between February 16th, 2004 and March 1st, 2004 usern marciana & metadatal 2004:02.16|2004:03.01
the references entered by Marciana up to February 15th, 2004 usern marciana & metadatal *|2004:02.15
the Books ref book and not ref edited and not ref section
(or simply) ref book,
the references with the words: exata, exato, exatas, exatos, and exatidão - exata | - exato | - exatas | - exatos | - exatidão
(or simply) - exat*
the portuguese references with and only with the words: exata, exato, exatas, and exatos - exata | - exato | - exatas | - exatos
(or simply) - exat??
the portuguese references with and only with the words: exatas and exatos - exatas | - exatos
(or simply) - exat?s
the portuguese references with and only with the words: exata and exato - exata | - exato
(or simply) - exat?$
the references with the word exata, followed or not by ? - exata?
(or simply) - exata

More details about forming a search expression are available in the Advanced Help page.