Index du Répertoire bibliographique des sciences mathématiques,

Schedule of classification of the Répertoire.

Katalog der bibliothek des Kaiserlich deutschen archaologischen instituts in Rom /

Closely classified, with index.

Schema des realkatalogs der königlichen universitätsbibliothek zu Halle a. S.

"... In seiner grundeintheilung entworfen im jahre 1879 von...dr. O. Hartwig."

System des real-katalogs der Universitäts-biblothek Heidelberg,

Mode of access: Internet.

Oeuvres de Buffon, avec la synonymie et la classification de Cuvier.

t. 1. Théorie de la terre. Des époques de la nature.--t. 2. Des animaux. De l'homme.--t. 3. Des quadrupèdes.--t. 4. Des quadrupèdes. Des oiseaux.--t. 5. Des oiseaux.

Bibliotheca historico-militaris. Systematische Uebersicht der Erscheinungen aller Sprachen auf dem Gebiete der Geschichte der Kriege und Kriegswissenschaft seit Erfindung der Buchdruckerhunst bis zum Schluss des Jahres 1880.

Mode of access: Internet.

Katalog der Bibliothek des Königlich Preussischen Grosser Generalstabes.

"16420 Werke in 51,000 Bänder." Closely classified ("Inhalts-Verzeichniss": p. [v]-xv), with author index.

A practical treatise on the manufacture of colors for painting : comprising the origin, definition, and classification of colors; the treatment of the raw materials ... etc. /

Mode of access: Internet.

Leçons de flore. Cours complet de botanique; explication de tous les systèmes;

Published also as v. 7 of F.F. Chaumeton's Flore médicala.

Fibrés Vectoriels Semi-Stables sur une Courbe de Genre Deux et Association des Points dans L’espace Projectif

2000 Mathematics Subject Classification: 14D20, 14J60.

Plaintext Recovery in DES-like Cryptosystems Based on S-boxes with Embedded Parity Check

We describe an approach for recovering the plaintext in block ciphers having a design structure similar to the Data Encryption Standard but with improperly constructed S-boxes. The experiments with a backtracking search algorithm performing this kind of attack against modified DES/Triple-DES in ECB mode show that the unknown plaintext can be recovered with a small amount of uncertainty and this algorithm is highly efficient both in time and memory costs for plaintext sources with relatively low entropy. Our investigations demonstrate once again that modifications resulting to S-boxes which still satisfy some design criteria may lead to very weak ciphers. ACM Computing Classification System (1998): E.3, I.2.7, I.2.8.

Régularité Lipschitzienne des Géodésiques Minimisantes pour Quelques Distributions Affines

2000 Mathematics Subject Classification: 49J15, 49J30, 53B50.

The Lena River Delta - Land cover classification of tundra environments based on Landsat 7 ETM+ data and its application for upscaling of methane emissions

The Lena River Delta, situated in Northern Siberia (72.0 - 73.8° N, 122.0 - 129.5° E), is the largest Arctic delta and covers 29,000 km**2. Since natural deltas are characterised by complex geomorphological patterns and various types of ecosystems, high spatial resolution information on the distribution and extent of the delta environments is necessary for a spatial assessment and accurate quantification of biogeochemical processes as drivers for the emission of greenhouse gases from tundra soils. In this study, the first land cover classification for the entire Lena Delta based on Landsat 7 Enhanced Thematic Mapper (ETM+) images was conducted and used for the quantification of methane emissions from the delta ecosystems on the regional scale. The applied supervised minimum distance classification was very effective with the few ancillary data that were available for training site selection. Nine land cover classes of aquatic and terrestrial ecosystems in the wetland dominated (72%) Lena Delta could be defined by this classification approach. The mean daily methane emission of the entire Lena Delta was calculated with 10.35 mg CH4/m**2/d. Taking our multi-scale approach into account we find that the methane source strength of certain tundra wetland types is lower than calculated previously on coarser scales.

Étude des méthodes de saisie informatique relatives au forage de données appliquées à la prise de décision en urbanisme

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Prise en compte du risque environnemental dans les systèmes irrigués sahéliens : étude de cas au Sénégal

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.