4. This homework problem uses the following XML file, DTD file and XSL file:

The XML File

Note that one item is repeated, and that the use of spaces is not entirely uniform.

Leslie Lamport

1986

Addison-Wesley

David Marr

1980

290

199

218

Phil. Trans. Roy. Soc. B

R. K. Clifton

1987

82

1834

1835

J. Acoust. Soc. Am.

David Marr

1982

NY

Freeman

David Marr

1980

290

199

218

Phil. Trans. Roy. Soc. B

The DTD Code

The XSL Code

result-ns="http://www.w3.org/TR/REC-html">

Bibliography

---

• ,

  ,

  ,

  .

• ,

  ,

  ,

  ,

  pages

  .

-,

Answer the following questions.

1) Modify the XSL (and maybe the XML) file so that books are displayed in a style like that of the following:

Lamport, Leslie. Latex: A Document Preparation System (Addison-Wesley 1986).

and journal articles are displayed in a style like that of the following:

Marr, David. Visual information processing, Phil. Trans. Roy. Soc. B, 290, pp.199-218, 1980.

2) Define a new type of bibliography item for PhD theses in XSL, add two such items to the XML file, and add the appropriate declarations to the DTD code.