typo

book/instructions.md

@@ -10,7 +10,7 @@ This TeachBook links to relevant part of the other literature and only provides
 - Engineering Mechanics: Volume 1: Equilibrium, by {cite:ts}`Hartsuijker2006`. eBook available for free via TU Delft at [<img height="20px" src="./figures/springer-logo.svg" alt="Springer">](https://link-springer-com.tudelft.idm.oclc.org/book/10.1007/978-1-4020-5483-9). This book is also available in Dutch (only paid version) at [<img height="12px" src="./figures/logo-boom.svg" alt="Boom">](https://www.boomhogeronderwijs.nl/product/100-9055_Mechanica-Evenwicht-3e-druk).
 - Engineering Mechanics: Volume 2: Stresses, strains and displacements, by {cite:ts}`Hartsuijker2007`. eBook available for free via TU Delft at [<img height="20px" src="./figures/springer-logo.svg" alt="Springer">](https://link.springer.com/book/10.1007/978-1-4020-5763-2). This book is also available in Dutch (only paid version) at [<img height="12px" src="./figures/logo-boom.svg" alt="Boom">](https://www.boomhogeronderwijs.nl/product/100-9056_Mechanica-Spanningen-vervormingen-verplaatsingen-3e-druk).
 - Mechanica: Statisch onbepaalde constructies en bezwijkanalyse, by {cite:ts}`Hartsuijker2016`. Book available at [<img height="12px" src="./figures/logo-boom.svg" alt="Boom">](https://www.boom.nl/hoger-onderwijs/100-9587_Mechanica-Statisch-onbepaalde-constructies-en-bezwijkanalyse-3e-druk). This book is only available as a paid version in Dutch
-- Mechanica: Stabiliteit van het evenwicht, by cite:ts}`Hartsuijker2023`. Book available at [<img height="12px" src="./figures/logo-boom.svg" alt="Boom">](https://www.boom.nl/hoger-onderwijs/100-10458_Mechanica-Stabiliteit-van-het-evenwicht). This book is only available as a paid version in Dutch
+- Mechanica: Stabiliteit van het evenwicht, by {cite:ts}`Hartsuijker2023`. Book available at [<img height="12px" src="./figures/logo-boom.svg" alt="Boom">](https://www.boom.nl/hoger-onderwijs/100-10458_Mechanica-Stabiliteit-van-het-evenwicht). This book is only available as a paid version in Dutch
 - Introduction to continuum mechanics, by {cite:ts}`Hartsuijker2007con`. Book available [here](external/mechanics-BSc/book/Lecture_Notes_Elasticity.pdf)
 - Niet-symmetrische en inhomogene doorsnedes, by {cite:ts}`Hartsuijker2009`. Book available [here](external/mechanics-BSc/book/Niet-symmetrische_en_inhomogene_doorsnedes.pdf). Answers available [here](external/mechanics-BSc/book/antwoorden_Niet-symmetrische_en_inhomogene_doorsnedes.pdf). English version is part of Engineering Mechanics: Volume 2: Stresses, strains and displacements, by {cite:ts}`Hartsuijker2007`
 - Additional exercises in [<img height="12px" src="./figures/ANS.svg" alt="ANS"> course `Constructiemechanica BSc Civiele Techniek`](https://ans.app/routing/courses/436978). This course contains all the practice assignments linked to the content of [Mechanics-BSc TeachBook](https://teachbooks.github.io/mechanics-BSc). You can login into this course by [logging in into ANS - clicking  <svg xmlns="http://www.w3.org/2000/svg" height="24px" viewBox="0 -960 960 960" width="24px" fill="#5f6368"><path d="M80-120v-720h400v160h400v560H80Zm80-80h80v-80h-80v80Zm0-160h80v-80h-80v80Zm0-160h80v-80h-80v80Zm0-160h80v-80h-80v80Zm160 480h80v-80h-80v80Zm0-160h80v-80h-80v80Zm0-160h80v-80h-80v80Zm0-160h80v-80h-80v80Zm160 480h320v-400H480v80h80v80h-80v80h80v80h-80v80Zm160-240v-80h80v80h-80Zm0 160v-80h80v80h-80Z"/></svg> `TU Delft` - clicking `Join Course`  - clicking `Join` for `Constructiemechanica BSc Civiele Techniek`](https://ans.app/universities/1/courses/join_courses). Afterwards, you can directly go to the course by clicking the course in [your personal ANS dashboard](https://ans.app/routing/courses/436978) or by clicking the provided links in the book.