Informatica Donald Davinson, Theses and dissertations as information sources. London, Clive Bingley Ltd, 1977. 88 p. ISBN 0-85157-227-8 ; 0-208-01539-6. 76 ref. CIP LC 76-54930. Contents : The history of the thesis medium ; The nature and purposes of theses -, The bibliographie control of theses ; Bibliographies of theses ; Access to theses ; Research in progress (Simultaneous discoveries ; Registers of research in pro- gress -,...) -, Guides to thesis préparation (24 entries) ; Author index ; Title and sub- ject index. H.-K. d. J. Lauren B. Doyle, Information retrieval and processing. Los Angeles, Melville, 1975. (Information Science Series). This book is an up-to-date version of Information storage and retrieval.- tools, elements, théories, by J. Becker and R. M. Hayes, 1963. Hardware, materials and processes used in connection with information Systems are discussed first in chap- ters 2 through 4. The subject of information retrieval per se begins with chapters 5 and 6, which have to do with librarianship and documentation. Chapter 7 presents a simplified concept of an information system and its components, and paves the way for discussion of computerised retrieval in chapter 8 and document retrieval in chapter 9. Chapters 10 to 12, on language processing, évaluation, and user studies, describe important facets of the information retrieval field that have developed strongly since 1963. (overgenomen uit het voorwoord p. vin). Th. B. Inventariseren Thomas L. Welch, An approach to an inventary of the collections, in : Library resources and technical services, 21 (1977) 1, p. 77-80. De California State Polytechnic University Library maakte een inventaris van 286.409 volumes. De methode hierbij gebruikt wordt beschreven en enkele voor- delen van deze inventaris worden aangehaald. Th. B. Jeugdliteratuur Een Vlaams tijdschrift over jeugdliteratuur.- Refleks, in : De Nieuwe (1977) 669, p. 21-23. 160 / Bibliotheekgids — Jg. 53 — Nr. 2-3 —1977