"This book presents a very good introduction to combinatorics. It covers most aspects of enumeration and order theory,... It is divided into three parts. The first part presents the basic material on mappings and posets... The second part deals with enumeration ... Finally the third part treats of the order-theoretic aspects ... In the text examples are given and at the end of each chapter valuable notes, also very good selected exercises. They constitute an organic part of the book. This book can warmly be recommended first of all to students interested in combinatorics. A two semester course can also be based on it." -Publicationes Mathematicae Debrecen

• 1 Executive Summary.- 2 Environmental Problems, Policies and EUROTRAC.- 2.1 The Atmosphere as a Recipient and Transport Medium for Pollutants.- 2.2 Environmental Problems.- 2.3 Policies.- 2.4 EUROTRAC and its Application Project.- 2.5 Acknowledgements.- 2.6 References.- 3 Photo-oxidants.- 3.1 Environmental Policy Issues Related to Photo-oxidants.- 3.2 Scientific Findings of Importance for Environmental Policy.- 3.3 Applications and Importance for Environmental Policy, Potential for Applications.- 3.4 References.- 4 Acidification and Deposition of Nutrients.- 4.1 Environmental policy issues related to acidic deposition and deposition of nutrients.- 4.2 Scientific Assessment - Issues and Highlights.- 4.3 Applications and Implications for Policies.- 4.4 Conclusions. Future Potential for Applications.- 4.5 References.- 5 Contribution of EUROTRAC to the Development of Tools for the Study of Environmentally Relevant Trace Constituents.- 5.1 Introduction.- 5.2 Instruments.- 5.3 Laboratory Studies.- 5.4 Models.- 5.5 Other Tools.- 5.6 References.- Appendices.- A. The Application Project Description.- B. The EUROTRAC subprojects with their aims.

"This book presents a very good introduction to combinatorics. It covers most aspects of enumeration and order theory,... It is divided into three parts. The first part presents the basic material on mappings and posets... The second part deals with enumeration ... Finally the third part treats of the order-theoretic aspects ... In the text examples are given and at the end of each chapter valuable notes, also very good selected exercises. They constitute an organic part of the book. This book can warmly be recommended first of all to students interested in combinatorics. A two semester course can also be based on it." -Publicationes Mathematicae Debrecen

• 1 Executive Summary.- 2 Environmental Problems, Policies and EUROTRAC.- 2.1 The Atmosphere as a Recipient and Transport Medium for Pollutants.- 2.2 Environmental Problems.- 2.3 Policies.- 2.4 EUROTRAC and its Application Project.- 2.5 Acknowledgements.- 2.6 References.- 3 Photo-oxidants.- 3.1 Environmental Policy Issues Related to Photo-oxidants.- 3.2 Scientific Findings of Importance for Environmental Policy.- 3.3 Applications and Importance for Environmental Policy, Potential for Applications.- 3.4 References.- 4 Acidification and Deposition of Nutrients.- 4.1 Environmental policy issues related to acidic deposition and deposition of nutrients.- 4.2 Scientific Assessment - Issues and Highlights.- 4.3 Applications and Implications for Policies.- 4.4 Conclusions. Future Potential for Applications.- 4.5 References.- 5 Contribution of EUROTRAC to the Development of Tools for the Study of Environmentally Relevant Trace Constituents.- 5.1 Introduction.- 5.2 Instruments.- 5.3 Laboratory Studies.- 5.4 Models.- 5.5 Other Tools.- 5.6 References.- Appendices.- A. The Application Project Description.- B. The EUROTRAC subprojects with their aims.

"This book presents a very good introduction to combinatorics. It covers most aspects of enumeration and order theory,... It is divided into three parts. The first part presents the basic material on mappings and posets... The second part deals with enumeration ... Finally the third part treats of the order-theoretic aspects ... In the text examples are given and at the end of each chapter valuable notes, also very good selected exercises. They constitute an organic part of the book. This book can warmly be recommended first of all to students interested in combinatorics. A two semester course can also be based on it." -Publicationes Mathematicae Debrecen

• 1 Executive Summary.- 2 Environmental Problems, Policies and EUROTRAC.- 2.1 The Atmosphere as a Recipient and Transport Medium for Pollutants.- 2.2 Environmental Problems.- 2.3 Policies.- 2.4 EUROTRAC and its Application Project.- 2.5 Acknowledgements.- 2.6 References.- 3 Photo-oxidants.- 3.1 Environmental Policy Issues Related to Photo-oxidants.- 3.2 Scientific Findings of Importance for Environmental Policy.- 3.3 Applications and Importance for Environmental Policy, Potential for Applications.- 3.4 References.- 4 Acidification and Deposition of Nutrients.- 4.1 Environmental policy issues related to acidic deposition and deposition of nutrients.- 4.2 Scientific Assessment - Issues and Highlights.- 4.3 Applications and Implications for Policies.- 4.4 Conclusions. Future Potential for Applications.- 4.5 References.- 5 Contribution of EUROTRAC to the Development of Tools for the Study of Environmentally Relevant Trace Constituents.- 5.1 Introduction.- 5.2 Instruments.- 5.3 Laboratory Studies.- 5.4 Models.- 5.5 Other Tools.- 5.6 References.- Appendices.- A. The Application Project Description.- B. The EUROTRAC subprojects with their aims.