Joseph B. Keller 
The Inverse Scattering Problem in Geometrical Optics and the Design of Reflectors [PDF ebook] 
January, 1958

Published annually since 1972, the Historic Documents series has made primary source research easy by presenting excerpts from documents on the important events of each year for the United States and …

Let Everyone Find Their Voice offers a wealth of exquisitely crafted and sensitive worship resources that will enrich personal prayer and public worship, and will readily lend itself to multiple past …

Published annually since 1972, the Historic Documents series has made primary source research easy by presenting excerpts from documents on the important events of each year for the United States and …

Australian voters ousting a nine-year-old Coalition government. A step towards instituting a First Nations Voice to Parliament. Rising tension between China and the US. Entrenched structures of autho …

Published annually, State Rankings features comprehensive state statistics across key measures in education, health, crime, transportation, taxes, government finance, and so much more. The editors co …

The Historic Documents of 2021 makes primary source research easy by presenting excerpts from documents on the important events of the United States and the World. The Historic Documents of 2021 &#xa …

The Political Handbook of the World 2022-2023  provides timely, thorough, and accurate political information, with more in-depth coverage of current political controversies than any other refere …

From its early days as an unknown start-up, The Conversation published landmark essays such as Patrick Stokes’s ‘No, you’re not entitled to your opinion’, which saw the organisation grow into an impo …

This book is about the hundreds of emails that was received from The White House and President Barack Obama in the last of his first four year term in Office. As the First Black African American Pres …

In April of 1966 a young girl was struck by a car and seriously injured while crossing US 1 in Eau Gallie. She lay in the road for 45 minutes before an ambulance from Central Brevard transported her …